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- 노창석
- KIAS Assistant Professor
- quantum optics
- Office 1429
- Tel 3847 / Fax
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- 니스 무니
- KIAS Assistant Professor
- Algebraic Geometry
- Office 1417
- Tel 2568 / Fax 3786
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- 박진형
- KIAS Assistant Professor
- Algebraic Geometry
- Office 1415
- Tel 2572 / Fax
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- 백승수
- KIAS Assistant Professor
- Theoretical and Computational Condensed Matter Physics
- Office 1526
- Tel 3898 / Fax 3870
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- 에반스, 제이슨 로트
- KIAS Assistant Professor
- Office 1418
- Tel 3756 / Fax
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Low-Scale D-term Inflation and the Relaxion Title : Low-Scale D-term Inflation and the Relaxion Author : Jason L. Evans, Tony Gherghetta, Natsumi Nagata, Marco Peloso Journal :
Low-Scale D-term Inflation and the Relaxion NUMBER P17024 AUTHOR Jason L. Evans, Tony Gherghetta, Natsumi Nagata, Marco Peloso TITLE Low-Scale D-term Inflation and the Relaxion ARCHIVE UMN-TH-3624/17 FILE draft.pdf JOURNAL ABSTRACT
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No-Scale SU(5) Super-GUTs Title : No-Scale SU(5) Super-GUTs Author : Jason L. Evans, John Ellis, Natsumi Nagata, Dimitri V Nanopoulos, Kieth A. Olive Journal :
No-Scale SU(5) Super-GUTs NUMBER P17008 AUTHOR Jason L. Evans, John Ellis, Natsumi Nagata, Dimitri V Nanopoulos, Kieth A. Olive TITLE No-Scale SU(5) Super-GUTs ARCHIVE FILE JOURNAL ABSTRACT
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The Super-GUT CMSSM Revisited Title : The Super-GUT CMSSM Revisited Author : John Ellis, Jason L Evans, Azar Mustafayev, Natsumi Nagata, and Keith A. Olive Journal :
The Super-GUT CMSSM Revisited NUMBER P16059 AUTHOR John Ellis, Jason L Evans, Azar Mustafayev, Natsumi Nagata, and Keith A. Olive TITLE The Super-GUT CMSSM Revisited ARCHIVE FILE JOURNAL ABSTRACT
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Naturalizing Supersymmetry with a Two-Field Relaxion Mechanism Title : Naturalizing Supersymmetry with a Two-Field Relaxion Mechanism Author : Jason L. Evans, Tony Gherghette, Natsumi Nagata, Zachary Thomas Journal :
Naturalizing Supersymmetry with a Two-Field Relaxion Mechanism NUMBER P16015 AUTHOR Jason L. Evans, Tony Gherghette, Natsumi Nagata, Zachary Thomas TITLE Naturalizing Supersymmetry with a Two-Field Relaxion Mechanism ARCHIVE arXiv:1602.04812 FILE JOURNAL ABSTRACT
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The ATLAS Diboson Resonance in Non-Supersymmetric SO(10) Title : The ATLAS Diboson Resonance in Non-Supersymmetric SO(10) Author : Jason L. Evans, Natsumi Nagata, Keith A. Olive, Jiaming Zheng Journal : JHEP 1602 (2016) 120
The ATLAS Diboson Resonance in Non-Supersymmetric SO(10) NUMBER P15063 AUTHOR Jason L. Evans, Natsumi Nagata, Keith A. Olive, Jiaming Zheng TITLE The ATLAS Diboson Resonance in Non-Supersymmetric SO(10) ARCHIVE arXiv:1512.02184 FILE JOURNAL JHEP 1602 (2016) 120 ABSTRACT
- 강승훈
- Research Fellow
- Theoretical and Computational Materials Science
- Office : 1517
- Tel : 3856 | Fax :
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- 고벳, 라파엘
- Research Fellow
- Cosmology
- Office : 7406
- Tel : 3853 | Fax : 3820
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Satellite content and quenching of star formation in galaxy groups at z ~ 1.8 Title : Satellite content and quenching of star formation in galaxy groups at z ~ 1.8 Author : Raphael Gobat, Daddi, E., Béthermin, M., Pannella, M., Finoguenov, A., Gozaliasl, G., Le Floch, E., Schreiber, C., Strazzullo, V., Sargent, M., Wang, T., Ho Seong Hwang et al. Journal : Astronomy & Astrophysics, 581, 56
Satellite content and quenching of star formation in galaxy groups at z ~ 1.8 NUMBER P15047 AUTHOR Raphael Gobat, Daddi, E., Béthermin, M., Pannella, M., Finoguenov, A., Gozaliasl, G., Le Floch, E., Schreiber, C., Strazzullo, V., Sargent, M., Wang, T., Ho Seong Hwang et al. TITLE Satellite content and quenching of star formation in galaxy groups at z ~ 1.8 ARCHIVE arXiv:1507.03953 FILE JOURNAL Astronomy & Astrophysics, 581, 56 ABSTRACT We study the properties of satellites in the environment of massive
star-forming galaxies at z ~ 1.8 in the COSMOS field, using a sample
of 215 galaxies on the main sequence of star formation with an average
mass of ~1011M⊙. At z> 1.5, these galaxies typically trace halos of
mass ≳1013M⊙. We use optical-near-infrared photometry to estimate
stellar masses and star formation rates (SFR) of centrals and
satellites down to ~ 6 × 109M⊙. We stack data around 215 central
galaxies to statistically detect their satellite halos, finding an
average of ~3 galaxies in excess of the background density. We fit the
radial profiles of satellites with simple β-models, and compare their
integrated properties to model predictions. We find that the total
stellar mass of satellites amounts to ~68% of the central galaxy,
while spectral energy distribution modeling and far-infrared
photometry consistently show their total SFR to be 25-35% of the
centrals rate. We also see significant variation in the specific SFR
of satellites within the halo with, in particular, a sharp decrease at
<100 kpc. After considering different potential explanations, we
conclude that this is likely an environmental signature of the hot
inner halo. This effect can be explained in the first order by a
simple free-fall scenario, suggesting that these low-mass environments
can shut down star formation in satellites on relatively short
timescales of ~0.3 Gyr.
- 권상훈
- CMC Research Fellow
- Dynamical system, Ergodic theory
- Office : 8303
- Tel : 2648 | Fax :
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Equidistribution with an error rate and Diophantine approximation over function fields Title : Equidistribution with an error rate and Diophantine approximation over function fields Author : Sanghoon Kwon Journal :
Equidistribution with an error rate and Diophantine approximation over function fields NUMBER S16001 AUTHOR Sanghoon Kwon TITLE Equidistribution with an error rate and Diophantine approximation over function fields ARCHIVE FILE JOURNAL ABSTRACT We prove pointwise equidistribution with an error rate of each $H$-orbit in
$SL(d,bK)/SL(d,bZ)$ for a certain proper subgroup $H$ of
horospherical group over a function field $bK$, extending a work of
Kleinbock-Shi-Weiss. Moreover, we obtain an asymptotic formula for the
number of integral solutions to the Diophantine inequalities with weights,
generalizing a result of Dodson-Kristensen-Levesley.
This result enables us to show pointwise equidistribution for unbounded
functions of class $C_alpha$, which was first introduced by Eskin-
Margulis-Mozes.
- 권현웅
- QUC Research Fellow
- Condensed Matter Physics
- Office : 1518
- Tel : 3737 | Fax :
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Generalized hydromechanical model for stomatal responses to hydraulic perturbations Title : Generalized hydromechanical model for stomatal responses to hydraulic perturbations Author : HyunWoong Kwon, MooYoung Choi Journal : Journal of Theoretical Biology
Generalized hydromechanical model for stomatal responses to hydraulic perturbations NUMBER P13066 AUTHOR HyunWoong Kwon, MooYoung Choi TITLE Generalized hydromechanical model for stomatal responses to hydraulic perturbations ARCHIVE FILE JOURNAL Journal of Theoretical Biology ABSTRACT Stomata respond in a common pattern to various hydraulic perturbations
on any part of the
‘soil–plant–air’ system: initial transient ‘wrong-way’
responses and final
stationary ‘right-
way’ responses. In order to describe this pattern on the basis of
statistical physics, we
propose a simple model where turgor pressure of a cell is taken to be
a power function of
its volume, and obtain results in qualitative agreement with
experimental data for
responses to a variety of hydraulic perturbations: Firstly, stationary
stomatal conductance
as a function of the vapor pressure deficit divides into three regimes
characterized by
sensitivities of the stomatal conductance and the transpiration rate
with respect to vapor
pressure deficit; secondly, for every hydraulic perturbation, the
initial transient ‘wrong-
way’ responses always appear; thirdly, on condition that water is
supplied insufficiently,
stomatal oscillations are often observed; finally, stomatal responses
following leaf
excision exhibit, after the initial transient wrong-way responses,
slow relaxation to
stomatal closing. In particular, comparison of areoles having
different numbers of stomata
demonstrates that areoles with small numbers of stomata tend to
provoke lack of water in
the soil as well as in the plant. In addition, our model also
describes well dependence of
the stomatal conductance on temperature. It may be extended further to
describe stomatal
responses to other environmental factors such as carbon dioxide,
light, and temperature.
- 김건우
- Research Fellow
- Condensed Matter Physics
- Office : 1409
- Tel : 3787 | Fax : 3870
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Weyl nodes as topological defects of the Wannier-Stark ladder: From surface to bulk Fermi arcs Title : Weyl nodes as topological defects of the Wannier-Stark ladder: From surface to bulk Fermi arcs Author : Kun Woo Kim, Woo-Ram Lee, Yong Baek Kim, Kwon Park. Journal :
Weyl nodes as topological defects of the Wannier-Stark ladder: From surface to bulk Fermi arcs NUMBER P16064 AUTHOR Kun Woo Kim, Woo-Ram Lee, Yong Baek Kim, Kwon Park. TITLE Weyl nodes as topological defects of the Wannier-Stark ladder: From surface to bulk Fermi arcs ARCHIVE arxiv:1608.05531 FILE JOURNAL ABSTRACT A hallmark of Weyl semimetal is the existence of surface Fermi arcs
connecting two surface-projected Weyl nodes with opposite chiralities.
An intriguing question is what determines the connectivity of surface
Fermi arcs, when multiple pairs of Weyl nodes are present. To answer
this question, we first show that the locations of surface Fermi arcs
are predominantly determined by the condition that the Zak phase
integrated along the normal direction to the surface is π. More
importantly, the Zak phase can reveal the peculiar topological
structure of Weyl semimetal directly in the bulk. Here, we show that
the non-trivial winding of the Zak phase around each projected Weyl
node manifests itself as a topological defect of the Wannier-Stark
ladder, the energy eigenstates emerging under an electric field.
Remarkably, this structure leads to bulk Fermi arcs, i.e., open line
segments in the bulk momentum spectra. It is argued that bulk Fermi
arcs should exist in conjunction with the surface counterparts to
conserve the Weyl fermion number under an electric field, which is
supported by explicit numerical evidence.
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Shift charge and spin photocurrents in Dirac surface states of topological insulator Title : Shift charge and spin photocurrents in Dirac surface states of topological insulator Author : Kun Woo Kim, Takahiro Morimoto, Naoto Nagaosa Journal :
Shift charge and spin photocurrents in Dirac surface states of topological insulator NUMBER P16049 AUTHOR Kun Woo Kim, Takahiro Morimoto, Naoto Nagaosa TITLE Shift charge and spin photocurrents in Dirac surface states of topological insulator ARCHIVE arXiv:1607.03888 FILE JOURNAL ABSTRACT The generation of photocurrent in condensed matter is of main interest
for photovoltaic and optoelectronic applications. Shift current, a
nonlinear photoresponse, has attracted recent intensive attention as a
dominant player of bulk photovoltaic effect in ferroelectric
materials. In three dimensional topological insulators Bi_2X_3 (X: Te,
Se), we find that Dirac surface states with a hexagonal warping term
carry shift current by linearly polarized light. In addition, shift
spin-current is introduced with the time-reversal symmetry breaking
perturbation. The estimate for the magnitudes of the shift charge- and
spin-currents are 0.13 I_0 and 0.21 I_0(nA/m) with the intensity of
light I_0 measured in (W/m2), respectively, which can offer a useful
method to generate these currents efficiently.
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`Holographic treatment of surface disorder on a topological insulator Title : `Holographic treatment of surface disorder on a topological insulator Author : Kun Woo Kim, Roger S. K. Mong, Marcel Franz, Gil Refael Journal :
`Holographic treatment of surface disorder on a topological insulator NUMBER P15015 AUTHOR Kun Woo Kim, Roger S. K. Mong, Marcel Franz, Gil Refael TITLE `Holographic treatment of surface disorder on a topological insulator ARCHIVE arXiv:1503.03456 FILE JOURNAL ABSTRACT The effect of surface disorder on electronic systems is particularly
interesting for topological phases with surface and edge states. Using
exact diagonalization, it has been demonstrated that the surface states of
a 3D topological insulator survive strong surface disorder, and simply get
pushed to a clean part of the bulk. Here we explore a new method which
analytically eliminates the clean bulk, and reduces a D-dimensional
problem to a Hamiltonian-diagonalization problem within the (D−1)-
dimensional disordered surface. This dramatic reduction in complexity
allows the analysis of significantly bigger systems than is possible with
exact diagonalization. We use our method to analyze a 2D topological
spin-Hall insulator with non-magnetic and magnetic edge impurities, and
we calculate the probability density (or local density of states) of the zero-
energy eigenstates as a function of edge-parallel momentum and layer
index. Our analysis reveals that the system size needed to reach
behavior in the thermodynamic limit increases with disorder. We also
compute the edge conductance as a function of disorder strength, and
chart a lower bound for the length scale marking the crossover to the
thermodynamic limit.
- 김광섭
- Research Fellow
- Number Theory
- Office : 1408
- Tel : 3845 | Fax : 3786
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- 김문대
- Project Research Fellow
- Quantum Information
- Office : 8201
- Tel : 2658 | Fax : 3820
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Macroscopic Entangled States in Superconducting Flux Qubits Title : Macroscopic Entangled States in Superconducting Flux Qubits Author : Mun Dae Kim, Sam Young Cho Journal : Journal of Physics: Conference Series
Macroscopic Entangled States in Superconducting Flux Qubits NUMBER P08044 AUTHOR Mun Dae Kim, Sam Young Cho TITLE Macroscopic Entangled States in Superconducting Flux Qubits ARCHIVE FILE LT2996_entangle.pdf JOURNAL Journal of Physics: Conference Series ABSTRACT We theoretically study the macroscopic quantum entanglement in
superconducting
flux qubits. A phase-coupling scheme is proposed to offer enough
strength of interactions between qubits.
It is shown that due to the two-qubit tunneling processes both the ground
state and excited states of coupled two
flux qubits can be Bell type states, maximally entangled, in experimentally
accessible regimes. The parameter
regimes for the Bell states are discussed in terms of external magnetic
flux and Josephson coupling energies.
We also investigate two types of genuine three-qubit entanglement,
known as the Greenberger-Horne-
Zeilinger(GHZ) and W states. While an excited state can be the W state,
the GHZ state is formed at the
ground state of the coupled three flux qubits. The GHZ and W states are
shown to be robust against external
flux fluctuations for feasible experimental realizations.
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Coherent Operation of Superconducting Flux Qubits at Optimal Point Title : Coherent Operation of Superconducting Flux Qubits at Optimal Point Author : Mun Dae Kim, Sam Young Cho Journal :
Coherent Operation of Superconducting Flux Qubits at Optimal Point NUMBER P08035 AUTHOR Mun Dae Kim, Sam Young Cho TITLE Coherent Operation of Superconducting Flux Qubits at Optimal Point ARCHIVE FILE JOURNAL ABSTRACT We study microwave-driven quantum coherent operations of
superconducting flux qubits.
The interaction between the threading microwave flux
and the qubits is shown to be described in terms of magnetic dipole
energy of qubit current states. The discriminating Rabi oscillation for the
controlled-NOT gate operation requires a strong coupling
which is obtainable using a phase-coupling scheme.
We also discuss how the coupled-qubit operations can be performed at
the optimal point.
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Superconducting-ferromagnet Junction Phase Qubit Title : Superconducting-ferromagnet Junction Phase Qubit Author : Tae-Wan Noh, Mun Dae Kim, Heung-Sun Sim Journal :
Superconducting-ferromagnet Junction Phase Qubit NUMBER P08010 AUTHOR Tae-Wan Noh, Mun Dae Kim, Heung-Sun Sim TITLE Superconducting-ferromagnet Junction Phase Qubit ARCHIVE 0804.0349 FILE JOURNAL ABSTRACT We propose a new phase qubit in an SIFIS junction, consisting of bulk
superconductors (S), a ferromagnet (F), and insulating barriers (I). The
qubit state is constituted by the 0 and the $pi$ phase states of the
junction, in which the charging energy of the barriers leads to the
superposition of the two states. The qubit is operated by the gate voltage
applied to the ferromagnet, and insensitive to the decoherences existing
in other superconducting qubits. We discuss a scalable scheme for qubit
measurement and tunable two-qubit coupling.
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Kondo physics in the algebraic spin liquid Title : Kondo physics in the algebraic spin liquid Author : Ki-Seok Kim, Mun Dae Kim Journal : J. Phys.: Condens. Matter 20 (2008) 125206
Kondo physics in the algebraic spin liquid NUMBER P07033 AUTHOR Ki-Seok Kim, Mun Dae Kim TITLE Kondo physics in the algebraic spin liquid ARCHIVE 0706.2943 FILE JOURNAL J. Phys.: Condens. Matter 20 (2008) 125206 ABSTRACT We study Kondo physics in the algebraic spin liquid, recently proposed t
o describe $ZnCu_{3}(OH)_{6}Cl_{2}$ [Phys. Rev. Lett. {bf 98}, 1
17205 (2007)]. Although the spin dynamics of the algebraic spin liquid is d
escribed by massless Dirac fermions, this problem differs from the P
seudogap Kondo model, because the bulk physics in the algebraic spin l
iquid is governed by an interacting fixed point where well-defined q
uasiparticle excitations are not allowed. Considering an effective bulk m
odel characterized by an anomalous critical exponent, we derive an e
ffective impurity action in the slave-boson context. Performing the large-$
N_{sigma}$ analysis with a spin index $N_{sigma}$, we find an i
mpurity quantum phase transition from a decoupled local-moment state to a
Kondo-screened phase. We evaluate the impurity spin susceptibility a
nd specific heat coefficient at zero temperature, and find that such r
esponses follow power-law dependencies modified by the anomalous e
xponent of the algebraic spin liquid. Our main finding is that the Wilsons r
atio for the magnetic impurity depends strongly on the critical exponent in t
he zero temperature limit. We propose that the Wilsons ratio for the m
agnetic impurity may be one possible probe to reveal criticality of the b
ulk system.
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Spin-gapped incoherent metal with preformed pairing in the doped antiferromagnetic Mott insulator Title : Spin-gapped incoherent metal with preformed pairing in the doped antiferromagnetic Mott insulator Author : Ki-Seok Kim, Mun Dae Kim Journal : Physical Review B 77, 125103 (2008)
Spin-gapped incoherent metal with preformed pairing in the doped antiferromagnetic Mott insulator NUMBER P07032 AUTHOR Ki-Seok Kim, Mun Dae Kim TITLE Spin-gapped incoherent metal with preformed pairing in the doped antiferromagnetic Mott insulator ARCHIVE 0702586 FILE JOURNAL Physical Review B 77, 125103 (2008) ABSTRACT We investigate how the antiferromagnetic Mott insulator (AF-MI) evolves i
nto the high $T_{c}$ superconductor (HTc-SC) through hole doping. A
llowing spin fluctuations in the strong coupling approach, we find a s
pin-gapped incoherent metal with preformed pairing as an intermediate p
hase between the AF-MI and HTc-SC. This non-Fermi liquid metal is i
dentified with an infrared stable fixed point in the spin-decomposition g
auge theory, analogous to the spin liquid insulator in the slave-boson g
auge theory. We discuss how its presence can explain that onset of s
uperconductivity results in coherence of elementary excitations.
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Realizable spin models and entanglement dynamics in superconducting flux qubit systems Title : Realizable spin models and entanglement dynamics in superconducting flux qubit systems Author : Qian Qian Shi, Sam Young Cho, Bo Li, Mun Dae Kim Journal : Physical Review B 77, 104511 (2008)
Realizable spin models and entanglement dynamics in superconducting flux qubit systems NUMBER P07028 AUTHOR Qian Qian Shi, Sam Young Cho, Bo Li, Mun Dae Kim TITLE Realizable spin models and entanglement dynamics in superconducting flux qubit systems ARCHIVE 0706.2402 FILE JOURNAL Physical Review B 77, 104511 (2008) ABSTRACT Realizable spin models are investigated in a two superconducting flux
qubit system. It is shown that a specific adjustment of system parameters
in the two flux qubit system makes it possible to realize an artificial two-
spin system that cannot be found naturally. For the artificial two-spin
systems, time evolution of a prepared quantum state is discussed to
quantify quantum entanglement dynamics. The concurrence and fidelity as
a function of time are shown to reveal a characteristic entanglement
dynamics of the artificial spin systems. It is found that the unentangled
input state can evolute to be a maximally entangled output state
periodically due to the exchange interactions induced by two-qubit
flipping tunneling processes while single-qubit flipping tunneling
processes plays a role of magnetic fields for the artificial spins.
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Macroscopic Greenberger-Horne-Zeilinger and W States in Flux Qubits Title : Macroscopic Greenberger-Horne-Zeilinger and W States in Flux Qubits Author : Mun Dae Kim, Sam Young Cho Journal : Physical Review B 77, 100508(R) (2008)
Macroscopic Greenberger-Horne-Zeilinger and W States in Flux Qubits NUMBER P07024 AUTHOR Mun Dae Kim, Sam Young Cho TITLE Macroscopic Greenberger-Horne-Zeilinger and W States in Flux Qubits ARCHIVE arXiv:0705.3391 FILE JOURNAL Physical Review B 77, 100508(R) (2008) ABSTRACT We investigate two types of genuine three-qubit entanglement, known as
the Greenberger-Horne-Zeilinger (GHZ) and W states, in a macroscopic
quantum system. Superconducting flux qubits are considered theoretically
in order to generate such states. A phase coupling is proposed in a way
of superconducting loops connecting the qubits, which can offer enough
strength of interactions between qubits. While an excited state can be the
W state, the ground state of the three-flux qubits is shown to be the GHZ
state. Specific ranges of system parameters are discussed to realize the
GHZ state and the W state experimentally.
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Macroscopic Many-Qubit Interactions in Superconducting Flux Qubits Title : Macroscopic Many-Qubit Interactions in Superconducting Flux Qubits Author : Sam Young Cho, Mun Dae Kim Journal : Physical Review B 77, 212506 (2008)
Macroscopic Many-Qubit Interactions in Superconducting Flux Qubits NUMBER P07023 AUTHOR Sam Young Cho, Mun Dae Kim TITLE Macroscopic Many-Qubit Interactions in Superconducting Flux Qubits ARCHIVE 0703505 FILE JOURNAL Physical Review B 77, 212506 (2008) ABSTRACT Superconducting flux qubits are considered to investigate macroscopic
many-qubit interactions.
Many-qubit states based on current states can be manipulated through
the current-phase relation in each superconducting loop.
For flux qubit systems comprised of $N$ qubit loops, a general
expression of low energy Hamiltonian is presented in terms of low energy
levels of qubits and macroscopic quantum tunnelings between the many-
qubit states.
Many-qubit interactions classified by {em Ising type- or tunnel-}
exchange interactions can be observable experimentally.
Flux qubit systems can provide various artificial-spin systems to study
many-body systems that cannot be found naturally.
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Antiferromagnetic metal to heavy-fermion metal quantum phase transition in the Kondo lattice model: A strong-coupling approach Title : Antiferromagnetic metal to heavy-fermion metal quantum phase transition in the Kondo lattice model: A strong-coupling approach Author : Ki-Seok Kim, Mun Dae Kim Journal : Phys. Rev. B vol. 75, 035117 (2007)
Antiferromagnetic metal to heavy-fermion metal quantum phase transition in the Kondo lattice model: A strong-coupling approach NUMBER P07003 AUTHOR Ki-Seok Kim, Mun Dae Kim TITLE Antiferromagnetic metal to heavy-fermion metal quantum phase transition in the Kondo lattice model: A strong-coupling approach ARCHIVE cond-mat/0608235 FILE JOURNAL Phys. Rev. B vol. 75, 035117 (2007) ABSTRACT
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Entanglement and Bell States in Superconducting Flux Qubits Title : Entanglement and Bell States in Superconducting Flux Qubits Author : Mun Dae Kim, Sam Young Cho Journal : Physical Review B 75, 134514 (2007)
Entanglement and Bell States in Superconducting Flux Qubits NUMBER P06007 AUTHOR Mun Dae Kim, Sam Young Cho TITLE Entanglement and Bell States in Superconducting Flux Qubits ARCHIVE cond-mat/0606034 FILE JOURNAL Physical Review B 75, 134514 (2007) ABSTRACT We theoretically study macroscopic quantum entanglement
in two superconducting flux qubits.
To manipulate the state of two flux qubits,
a Josephson junction is introduced in the connecting loop coupling the
qubits.
Increasing the coupling energy of the Josephson junction makes it
possible
to achieve relatively strong coupling between the qubits,
causing two-qubit tunneling processes even dominant over
the single-qubit tunneling process in the states of two qubits.
It is shown that due to the two-qubit tunneling processes
both the ground state and excited state
of the coupled flux qubits can be
a Bell type state, maximally entangled.
The parameter regimes for the Bell states are
discussed in terms of magnetic flux and Josephson coupling energies.
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Controllable Coupling in Phase-Coupled Flux Qubits Title : Controllable Coupling in Phase-Coupled Flux Qubits Author : Mun Dae Kim Journal : PHYSICAL REVIEW B 74 (18): Art. No. 184501 NOV 2006
Controllable Coupling in Phase-Coupled Flux Qubits NUMBER P06006 AUTHOR Mun Dae Kim TITLE Controllable Coupling in Phase-Coupled Flux Qubits ARCHIVE cond-mat/0602604 FILE JOURNAL PHYSICAL REVIEW B 74 (18): Art. No. 184501 NOV 2006 ABSTRACT We suggest a scheme for controllable coupling of the phase-coupled flux
qubits, where a connecting loop
is introduced to couple the phase differences of Josephson junctions in
different qubits.
Two dc-SQUIDs with penetrating fluxes of opposite directions are
inserted into the connecting loop and by varying the fluxes we can
achieve a broad range of coupling from sufficiently strong to vanishing
in switching-off limit.
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Current-phase relation of the SNS junction in a superconducting loop Title : Current-phase relation of the SNS junction in a superconducting loop Author : Mun Dae Kim, Jongbae Hong Journal : EUROPHYSICS LETTERS 73 (1): 90-96 JAN 2006
Current-phase relation of the SNS junction in a superconducting loop NUMBER P05073 AUTHOR Mun Dae Kim, Jongbae Hong TITLE Current-phase relation of the SNS junction in a superconducting loop ARCHIVE cond-mat/0406445 FILE JOURNAL EUROPHYSICS LETTERS 73 (1): 90-96 JAN 2006 ABSTRACT We study the current-phase relation of the
superconductor/normal/superconductor (SNS)
junction imbedded in a superconducting loop. Considering the current
conservation and free energy minimum conditions, we obtain the
persistent currents of the SNS loop. At finite temperature we can explain
the experimentally observed highly non-sinusoidal currents which have
maxima near the zero external flux.
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Effect of the Andreev reflection phase shift on the currents of SNS junctions and NS loops Title : Effect of the Andreev reflection phase shift on the currents of SNS junctions and NS loops Author : Mun Dae Kim, Jongbae Hong Journal : J. Korean Phys. Soc. 46, 689 (2005)
Effect of the Andreev reflection phase shift on the currents of SNS junctions and NS loops NUMBER P04056 AUTHOR Mun Dae Kim, Jongbae Hong TITLE Effect of the Andreev reflection phase shift on the currents of SNS junctions and NS loops ARCHIVE FILE JOURNAL J. Korean Phys. Soc. 46, 689 (2005) ABSTRACT We study the effect of the phase shift, $eta$, of the electron
wave function due to the Andreev reflection process on the currents
of superconducting/normal/superconducting (SNS) junctions and of
normal/superconducting (NS) loops with an Aharonov-Bohm flux. We
show that the current conservation condition is crucial in
obtaining the currents of the SNS junctions and the NS loops. The
persistent currents of NS loop shows the periodicity of the
superconducting unit flux quantum, $Phi_0/2$, regardless of the
length of the normal sector or the superconducting sector, when
the energy splitting $E$ is smaller than the pair potential
$Delta$. In the limit, $Ell Delta$, we obtain a Josephson
type formula, $Ipropto sqrt{Delta}sin (pi/2-2eta)$, by
minimizing the free energy of the NS loop.
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Diamagnetic Response of Aharonov-Bohm Rings: Impurity Backward Scatterings Title : Diamagnetic Response of Aharonov-Bohm Rings: Impurity Backward Scatterings Author : Mun Dae Kim, Chul Koo Kim, Kyun Nahm Journal : PHYSICAL REVIEW B 72 (8): Art. No. 085333 AUG 2005
Diamagnetic Response of Aharonov-Bohm Rings: Impurity Backward Scatterings NUMBER P04055 AUTHOR Mun Dae Kim, Chul Koo Kim, Kyun Nahm TITLE Diamagnetic Response of Aharonov-Bohm Rings: Impurity Backward Scatterings ARCHIVE cond-mat/0412189 FILE JOURNAL PHYSICAL REVIEW B 72 (8): Art. No. 085333 AUG 2005 ABSTRACT
- 김민혁
- Research Fellow
- Computational Biophysics
- Office : 7313
- Tel : 3839 | Fax : 3820
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- 김민훈
- Research Fellow
- low-dimensional topology
- Office : 1434
- Tel : 3727 | Fax : 3786
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- 김승기
- Research Fellow
- Number theory, lattice problems
- Office : 1538
- Tel : 3809 | Fax : 3786
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- 김승혁
- Research Fellow
- Elliptic and parabolic partial differential equation, Geometric analysis
- Office : 1537
- Tel : 2543 | Fax :
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- 김은미
- Research Fellow
- Number Theory
- Office : 7316
- Tel : 3749 | Fax : 3820
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- 김일두
- CMC Research Fellow
- Stochastic Partial Differential Equation
- Office : 8301
- Tel : 2644 | Fax :
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- 김준호
- Research Fellow
- String theory
- Office : 1529
- Tel : 3753 | Fax : 3870
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Little strings on D_n orbifolds Title : Little strings on D_n orbifolds Author : Joonho Kim, Kimyeong Lee Journal :
Little strings on D_n orbifolds NUMBER P17011 AUTHOR Joonho Kim, Kimyeong Lee TITLE Little strings on D_n orbifolds ARCHIVE 1702.03116 FILE JOURNAL ABSTRACT We explore two classes of 6d N=(1,0) little string theories obtained from type IIA/IIB NS5-branes
probing D_n
singularities. Their tensor branches are described by effective gauge theories whose instanton solitons
are macroscopic little
strings. We speci cally study two families of 2d N=(0,4) gauge theories which describe at low energy
the worldsheet
dynamics of type IIA/IIB little strings. These gauge theories are useful to calculate the
supersymmetric partition functions
of the little string theories on R^4 X T^2. We establish the T-duality of the little string theories by
utilizing their BPS
spectra as a probe.
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M5-branes, orientifolds, and S-duality Title : M5-branes, orientifolds, and S-duality Author : Yoonseok Hwang; Joonho Kim; Seok Kim Journal :
M5-branes, orientifolds, and S-duality NUMBER P16047 AUTHOR Yoonseok Hwang; Joonho Kim; Seok Kim TITLE M5-branes, orientifolds, and S-duality ARCHIVE 1607.08557 FILE JOURNAL ABSTRACT We study the instanton partition functions of 5d maximal super Yang-Mills theories with all classical
gauge groups. They are computed from the ADHM quantum mechanics of the D0-D4-O4 systems. Our
partition functions respect S-dualities of the circle compactified Yang-Mills theories and various
orientifold backgrounds. We also compute and study the S^5 partition functions that correspond to the
6d (2,0) superconformal indices. Our SO(2N) index takes the form of the vacuum character of W_D
algebra in a special limit, supporting the W algebra conjecture. We propose new indices for (2,0)
theories with outer automorphism twists along the temporal circle, obtained from non-simply-laced
SYMs on S^5.
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Higgsing towards E-strings Title : Higgsing towards E-strings Author : Joonho Kim, Seok Kim, Kimyeong Lee Journal :
Higgsing towards E-strings NUMBER P15053 AUTHOR Joonho Kim, Seok Kim, Kimyeong Lee TITLE Higgsing towards E-strings ARCHIVE 1510.03128 FILE JOURNAL ABSTRACT
- 김진수
- QUC Research Fellow
- Particle Phenomenology and Cosmology
- Office : 8404
- Tel : 2582 | Fax : 2590
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Gauss-Bonnet Chern-Simons gravitational wave leptogenesis Title : Gauss-Bonnet Chern-Simons gravitational wave leptogenesis Author : Jinsu Kim, Shinsuke Kawai Journal :
Gauss-Bonnet Chern-Simons gravitational wave leptogenesis NUMBER Q17014 AUTHOR Jinsu Kim, Shinsuke Kawai TITLE Gauss-Bonnet Chern-Simons gravitational wave leptogenesis ARCHIVE 1702.07689 FILE JOURNAL ABSTRACT
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Chaotic Initial Conditions for Non-Minimally Coupled Inflation via a Conformal Factor with a Zero Title : Chaotic Initial Conditions for Non-Minimally Coupled Inflation via a Conformal Factor with a Zero Author : Jinsu Kim, John McDonald Journal :
Chaotic Initial Conditions for Non-Minimally Coupled Inflation via a Conformal Factor with a Zero NUMBER Q17013 AUTHOR Jinsu Kim, John McDonald TITLE Chaotic Initial Conditions for Non-Minimally Coupled Inflation via a Conformal Factor with a Zero ARCHIVE 1612.04730 FILE JOURNAL ABSTRACT
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Inflaton Condensate Fragmentation: Analytical Conditions and Application to $alpha$-Attractor Models Title : Inflaton Condensate Fragmentation: Analytical Conditions and Application to $alpha$-Attractor Models Author : Jinsu Kim, John McDonald Journal :
Inflaton Condensate Fragmentation: Analytical Conditions and Application to $alpha$-Attractor Models NUMBER Q17012 AUTHOR Jinsu Kim, John McDonald TITLE Inflaton Condensate Fragmentation: Analytical Conditions and Application to $alpha$-Attractor Models ARCHIVE 1702.08777 FILE JOURNAL ABSTRACT
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Higgs-portal assisted Higgs inflation with a sizeable tensor-to-scalar ratio Title : Higgs-portal assisted Higgs inflation with a sizeable tensor-to-scalar ratio Author : Jinsu Kim, Pyungwon Ko, Wan-Il Park Journal : JCAP
Higgs-portal assisted Higgs inflation with a sizeable tensor-to-scalar ratio NUMBER Q16017 AUTHOR Jinsu Kim, Pyungwon Ko, Wan-Il Park TITLE Higgs-portal assisted Higgs inflation with a sizeable tensor-to-scalar ratio ARCHIVE 1405.1635 FILE JOURNAL JCAP ABSTRACT
- 김찬호
- Research Fellow
- number theory
- Office : 1536
- Tel : 3722 | Fax : 3786
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On the freeness of anticyclotomic Selmer groups of modular forms Title : On the freeness of anticyclotomic Selmer groups of modular forms Author : Chan-Ho Kim, Robert Pollack, Tom Weston Journal : International Journal of Number Theory, accepted
On the freeness of anticyclotomic Selmer groups of modular forms NUMBER M16004 AUTHOR Chan-Ho Kim, Robert Pollack, Tom Weston TITLE On the freeness of anticyclotomic Selmer groups of modular forms ARCHIVE FILE freeness_IJNT_submit.pdf JOURNAL International Journal of Number Theory, accepted ABSTRACT We establish the freeness of certain anticyclotomic Selmer groups of modular forms.
The freeness of these Selmer groups plays a key role in the Euler system arguments
introduced in [BD05]. In particular, our result fills some implicit gaps in [PW11] and
[CH15] which in turn allows the results of these papers to hold for modular forms
whose residual representations are not minimally ramified. Removing these minimal
ramification conditions is essential for applications of congruences of modular forms
to anticyclotomic Iwasawa theory as in [PW11, §7] and [Kim].
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Anticyclotomic Iwasawa invariants and congruences of modular forms Title : Anticyclotomic Iwasawa invariants and congruences of modular forms Author : Chan-Ho Kim Journal : Asian Journal of Mathematics, to appear
Anticyclotomic Iwasawa invariants and congruences of modular forms NUMBER M15013 AUTHOR Chan-Ho Kim TITLE Anticyclotomic Iwasawa invariants and congruences of modular forms ARCHIVE FILE summary_revised_final.pdf JOURNAL Asian Journal of Mathematics, to appear ABSTRACT The main purpose of this article is to examine how congruences between Hecke eigensystems of modular
forms affect the Iwasawa invariants of their anticyclotomic p-adic L-functions. We apply Greenberg-
Vatsal and Emerton-Pollack-Westons ideas on the variation of Iwasawa invariants under congruences
to the anticyclotomic setting. As an application, we establish infinitely many new examples of the
anticyclotomic main conjecture for modular forms, which cannot be treated by Skinner-Urbans work.
An explicit example is given.
- 김현중
- Research Fellow
- Theoretical and Computational Materials Science
- Office : 1534
- Tel : 2534 | Fax : 3870
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Origins of the structural phase transitions in MoTe2 and WTe2 Title : Origins of the structural phase transitions in MoTe2 and WTe2 Author : Hyun-Jung Kim, Seoung-Hun Kang, Ikutaro Hamada, Young-Woo Son Journal : Physical Review B 95, 180101(R) (2017)
Origins of the structural phase transitions in MoTe2 and WTe2 NUMBER C17004 AUTHOR Hyun-Jung Kim, Seoung-Hun Kang, Ikutaro Hamada, Young-Woo Son TITLE Origins of the structural phase transitions in MoTe2 and WTe2 ARCHIVE cond-mat/1702.04509 FILE PhysRevB.95.180101 (2017) Origins of the structural phase transitions in MoTe2 and WTe2.pdf JOURNAL Physical Review B 95, 180101(R) (2017) ABSTRACT Layered transition metal dichalcogenides MoTe2 and WTe2 share almost similar lattice constants as
well as topological electronic properties except their structural phase transitions. While the former
shows a first-order phase transition between monoclinic and orthorhombic structures, the latter does
not. Using a recently proposed van der Waals density functional method, we investigate structural
stability of the two materials and uncover that the disparate phase transitions originate from delicate
differences between their interlayer bonding states near the Fermi energy. By exploiting the relation
between the structural phase transitions and the low energy electronic properties, we show that a
charge doping can control the transition substantially, thereby suggesting a way to stabilize or to
eliminate their topological electronic energy bands.
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Contrasting diffusion behaviors of O and F atoms on graphene and within bilayer graphene Title : Contrasting diffusion behaviors of O and F atoms on graphene and within bilayer graphene Author : Seho Yi, Jin-Ho Choi, Hyun-Jung Kim, Chul Hong Park, Jun-Hyung Cho Journal : Physical Chemistry Chemical Physics
Contrasting diffusion behaviors of O and F atoms on graphene and within bilayer graphene NUMBER C17003 AUTHOR Seho Yi, Jin-Ho Choi, Hyun-Jung Kim, Chul Hong Park, Jun-Hyung Cho TITLE Contrasting diffusion behaviors of O and F atoms on graphene and within bilayer graphene ARCHIVE cond-mat/1611.08390 FILE PCCP.19.9107 (2017) Contrasting diffusion behaviors of O and F atoms on graphene and within bilayer graphene.pdf JOURNAL Physical Chemistry Chemical Physics ABSTRACT Chemical modification of graphene with adatoms is of importance for nanoelectronics applications.
Based on first-principles density-functional theory calculations including van der Waals interactions,
we present a comparative study of the diffusion characteristics of oxygen (O) and fluorine (F) atoms
both on graphene and between the layers of bilayer graphene. We find that the calculated diffusion
barrier for the O atom increases slightly from 0.81 eV on graphene to 0.85 eV within bilayer
graphene, while that for the F atom largely decreases from 0.30 eV on graphene to 0.18 eV within
bilayer graphene. Such contrasting behaviors of the O and F diffusions within bilayer graphene can
be traced to their different bonding natures: i.e., the O adatom that shows strongly covalent C–O–
C bonding on the bridge site of the C–C bond diffuses on one graphene layer with a slight
interference of the other layer, while the F adatom that shows semi-ionic F–C bonding on top of a
C atom easily diffuses by hopping between two graphene layers by accepting more electron charges
from the two layers. The present findings have important implications for the understanding of the
diffusion processes of F and O atoms on graphene and within bilayer graphene.
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Spin-orbit coupling effects on the stability of two competing structures in Pb/Si(111) and Pb/Ge(111) Title : Spin-orbit coupling effects on the stability of two competing structures in Pb/Si(111) and Pb/Ge(111) Author : Xiao-Yan Ren, Hyun-Jung Kim, Seho Yi, Yu Jia, Jun-Hyung Cho Journal : Physical Review B 94, 075436 (2016)
Spin-orbit coupling effects on the stability of two competing structures in Pb/Si(111) and Pb/Ge(111) NUMBER C16001 AUTHOR Xiao-Yan Ren, Hyun-Jung Kim, Seho Yi, Yu Jia, Jun-Hyung Cho TITLE Spin-orbit coupling effects on the stability of two competing structures in Pb/Si(111) and Pb/Ge(111) ARCHIVE arXiv:1606.04208 FILE PhysRevB.94.075436 (2016) Spin-orbit coupling effects on the stability of two competing structures in Pb:Si(111) and Pb:Ge(111).pdf JOURNAL Physical Review B 94, 075436 (2016) ABSTRACT Using first-principles density-functional theory (DFT) calculations with/without including the spin-
orbit coupling (SOC), we systematically investigate the (4/3)-monolayer structure of Pb on the
Si(111) or Ge(111) surface within the two competing structural models termed the H3 and T4
structures. We find that the SOC influences the relative stability of the two structures in both the
Pb/Si(111) and the Pb/Ge(111) systems, i.e., our DFT calculation without including the SOC
predicts that the T4 structure is energetically favored over the H3 structure by E = 25 meV for
Pb/Si(111) and 22 meV for Pb/Ge(111), but the inclusion of SOC reverses their relative stability
as E = −12 and −7 meV, respectively. Our analysis shows that the SOC-induced switching of the
ground state is attributed to a more asymmetric surface charge distribution in the H3 structure
compared to the T4 structure, which is associated with the hybridization of the Pb px , py , and pz
orbitals. This asymmetry of surface charge distribution gives rise to a relatively larger Rashba spin
splitting of surface states as well as a relatively larger pseudogap opening in the H3 structure. By
the nudged elastic-band calculation, we obtain a sizable energy barrier from the H3 to the T4
structure as ~0.59 and ~0.27 eV for Pb/Si(111) and Pb/Ge(111), respectively. Based on the
predicted thermodynamics and kinetics of Pb/Si(111) and Pb/Ge(111), we suggest not only the
coexistence of the two energetically competing structures at low temperatures, but also the order-
disorder transition at high temperatures.
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Origin of Symmetric Dimer Images of Si (001) Observed in Low-Temperature STM Title : Origin of Symmetric Dimer Images of Si (001) Observed in Low-Temperature STM Author : Xiao-Yan Ren, Hyun-Jung Kim, Chun-Yao Niu, Yu Jia, Jun-Hyung Cho Journal : Sci.Rep. 6, 27868 (2016)
Origin of Symmetric Dimer Images of Si (001) Observed in Low-Temperature STM NUMBER C15020 AUTHOR Xiao-Yan Ren, Hyun-Jung Kim, Chun-Yao Niu, Yu Jia, Jun-Hyung Cho TITLE Origin of Symmetric Dimer Images of Si (001) Observed in Low-Temperature STM ARCHIVE 1510.05406 FILE Sci.Rep.6.27868 (2016) Origin of Symmetric Dimer Images of Si(001) Observed by LT STM.pdf JOURNAL Sci.Rep. 6, 27868 (2016) ABSTRACT It has been a long-standing puzzle why buckled dimers of the Si(001) surface appeared symmetric
below 20 K in scanning tunneling microscopy (STM) experiments. Although such symmetric dimer
images were concluded to be due to an artifact induced by STM measurements, its underlying
mechanism is still veiled. Here,we demonstrate, based on a first-principles density-functional theory
calculation, that the symmetric dimer images are originated from the flip-flop motion of buckled
dimers, driven by quantum tunneling (QT). It is revealed that at low temperature the tunneling-
induced surface charging with holes reduces the energy barrier for the flipping of buckled dimers,
thereby giving rise to a sizable QT-driven frequency of the flip-flop motion. However, such a QT
phenomenon becomes marginal in the tunneling-induced surface charging with electrons. Our findings
provide an explanation for low-temperature STM data that exhibits apparent symmetric (buckled)
dimer structure in the filled-state (empty-state) images.
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Competing Magnetic Orderings and Tunable Topological States in Two-Dimensional Hexagonal Organometallic Lattices Title : Competing Magnetic Orderings and Tunable Topological States in Two-Dimensional Hexagonal Organometallic Lattices Author : Hyun-Jung Kim, Chaokai Li, Ji Feng, Jun-Hyung Cho, Zhenyu Zhang Journal : PHYSICAL REVIEW B 93, 041404(R) (2016)
Competing Magnetic Orderings and Tunable Topological States in Two-Dimensional Hexagonal Organometallic Lattices NUMBER C15019 AUTHOR Hyun-Jung Kim, Chaokai Li, Ji Feng, Jun-Hyung Cho, Zhenyu Zhang TITLE Competing Magnetic Orderings and Tunable Topological States in Two-Dimensional Hexagonal Organometallic Lattices ARCHIVE FILE JOURNAL PHYSICAL REVIEW B 93, 041404(R) (2016) ABSTRACT The exploration of topological states is of significant fundamental and practical importance in
contemporary condensed matter physics, for which the extension to two-dimensional (2D)
organometallic systems is particularly attractive. Using first-principles calculations, we show that a
2D hexagonal triphenyl-lead lattice composed of only main group elements is susceptible to a
magnetic instability, characterized by a considerably more stable antiferromagnetic (AFM) insulating
state rather than the topologically nontrivial quantum spin Hall state proposed recently. Even though
this AFM phase is topologically trivial, it possesses an intricate emergent degree of freedom, defined
by the product of spin and valley indices, leading to Berry curvature-induced spin and valley
currents under electron or hole doping. Furthermore, such a trivial band insulator can be tuned into
a topologically nontrivial matter by the application of an out-of-plane electric field, which destroys
the AFM order, favoring instead ferrimagnetic spin ordering and a quantum anomalous Hall state
with a non-zero topological invariant. These findings further enrich our understanding of 2D
hexagonal organometallic lattices for potential applications in spintronics and valleytronics.
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Giant spin-orbit-induced spin splitting in Bi zigzag chains on GaAs(110) Title : Giant spin-orbit-induced spin splitting in Bi zigzag chains on GaAs(110) Author : Hyun-Jung Kim, Jun-Hyung Cho Journal : PHYSICAL REVIEW B 92, 085303 (2015)
Giant spin-orbit-induced spin splitting in Bi zigzag chains on GaAs(110) NUMBER C15018 AUTHOR Hyun-Jung Kim, Jun-Hyung Cho TITLE Giant spin-orbit-induced spin splitting in Bi zigzag chains on GaAs(110) ARCHIVE FILE PhysRevB.92.085303 (2015) Giant spin-orbit-induced spin splitting in Bi zigzag chains on GaAs(110).pdf JOURNAL PHYSICAL REVIEW B 92, 085303 (2015) ABSTRACT The search for one-dimensional electron systems with a giant Rashba-type spin splitting is of
importance for the application of spin transport. Here we report, based on a first-principles density-
functional-theory calculation, that Bi zigzag chains formed on a heterogeneous GaAs(110) surface
have a giant spin splitting of surface states. This giant spin splitting is revealed to originate from
spin-orbit coupling (SOC) and electric dipole interaction that are significantly enhanced by (i) the
asymmetric surface charge distribution due to the strong SOC-induced hybridization of the Bi px , py
, and pz orbitals and (ii) the large out-of-plane and in-plane potential gradients generated by two
geometrically and electronically inequivalent Bi atoms bonding to Ga and As atoms. The results
demonstrate an important implication of the in-plane and out-of-plane asymmetry of the
Bi/GaAs(110) interface system in producing the giant spin splitting with the in-plane and out-of-
plane spin components.
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Nature of the Insulating Ground State of the 5d Postperovskite CaIrO3 Title : Nature of the Insulating Ground State of the 5d Postperovskite CaIrO3 Author : Sun-Woo Kim, Chen Liu, Hyun-Jung Kim, Jun-Ho Lee, Yongxin Yao, Kai-Ming Ho, Jun-Hyung Cho Journal : Phys. Rev. Lett. 115, 096401 (2015)
Nature of the Insulating Ground State of the 5d Postperovskite CaIrO3 NUMBER C15017 AUTHOR Sun-Woo Kim, Chen Liu, Hyun-Jung Kim, Jun-Ho Lee, Yongxin Yao, Kai-Ming Ho, Jun-Hyung Cho TITLE Nature of the Insulating Ground State of the 5d Postperovskite CaIrO3 ARCHIVE FILE PhysRevLett.115.096401 (2015) Nature of the Insulating Ground State of the 5d Postperovskite CaIrO3.pdf JOURNAL Phys. Rev. Lett. 115, 096401 (2015) ABSTRACT The insulating ground state of the 5d transition metal oxide CaIrO3 has been classified as a Mott-
type insulator. Based on a systematic density functional theory (DFT) study with local, semilocal,
and hybrid exchange-correlation functionals, we reveal that the Ir t2g states exhibit large splittings
and one-dimensional electronic states along the c axis due to a tetragonal crystal field. Our hybrid
DFT calculation adequately describes the antiferromagnetic (AFM) order along the c direction via a
superexchange interaction between Ir4þ spins. Furthermore, the spin-orbit coupling (SOC)
hybridizes the t2g states to open an insulating gap. These results indicate that CaIrO3 can be
represented as a spin-orbit Slater insulator, driven by the interplay between a long-range AFM order
and the SOC. Such a Slater mechanism for the gap formation is also demonstrated by the DFT +
dynamical mean field theory calculation, where the metal- insulator transition and the paramagnetic
to AFM phase transition are concomitant with each other.
- 김현진
- Research Fellow
- Protein Folding
- Office : 7321
- Tel : 3878 | Fax : 3820
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- 김혜선
- Project Research Fellow
- Several Complex Variables
- Office : 8304
- Tel : 2601 | Fax :
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- 김화길
- Research Fellow
- Partial Differential Equations
- Office : 7401
- Tel : 2536 | Fax : 3820
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- 나탈, 알렉산더
- Research Fellow
- Theoretical High Energy Physics
- Office : 7405
- Tel : 2516 | Fax :
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A Radiative Model of Quark Masses with Binary Tetrahedral Symmetry Title : A Radiative Model of Quark Masses with Binary Tetrahedral Symmetry Author : Natale, Alexander Journal :
A Radiative Model of Quark Masses with Binary Tetrahedral Symmetry NUMBER P16061 AUTHOR Natale, Alexander TITLE A Radiative Model of Quark Masses with Binary Tetrahedral Symmetry ARCHIVE arXiv:1608.06999 FILE JOURNAL ABSTRACT A radiative model of quark and lepton masses utilizing the binary
tetrahedral (T′) flavor symmetry, or horizontal symmetry, is proposed which
produces the first two generation of quark masses through their
interactions with vector-like quarks that carry charges under an additional
U(1). By softly-breaking the T′ to a residual Z4 through the vector-like
quark masses, a CKM mixing angle close to the Cabibbo angle is
produced. In order to generate the cobimaximal neutrino oscillation pattern
(θ13≠0,θ23=π/4,δCP=±π/2) and protect the horizontal symmetry from
arbitrary corrections in the lepton sector, there are automatically two
stabilizing symmetries in the dark sector. Several benchmark cases where
the correct relic density is achieved in a multi-component DM scenario
and the potential collider signatures of the vector-like quarks are
discussed.
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Simplified DM models with the full SM gauge symmetry : the case of t t -channel colored scalar mediators Title : Simplified DM models with the full SM gauge symmetry : the case of t t -channel colored scalar mediators Author : P. Ko, Alexander Natale, Myeonghun Park, Hiroshi Yokoya Journal :
Simplified DM models with the full SM gauge symmetry : the case of t t -channel colored scalar mediators NUMBER P16043 AUTHOR P. Ko, Alexander Natale, Myeonghun Park, Hiroshi Yokoya TITLE Simplified DM models with the full SM gauge symmetry : the case of t t -channel colored scalar mediators ARCHIVE arXiv:1605.07058 FILE JOURNAL ABSTRACT
- 남선영
- Research Fellow
- Combinatorics, Representation theory
- Office : 1327
- Tel : 3842 | Fax : 3820
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- 노무라, 타카아기
- Research Fellow
- Theoretical High Engergy Physics
- Office : 1321
- Tel : 2553 | Fax : 3870
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Radiative neutrino mass in an alternative $U(1)_{B-L}$ gauge symmetry Title : Radiative neutrino mass in an alternative $U(1)_{B-L}$ gauge symmetry Author : Takaaki Nomura, Hiroshi Okada Journal :
Radiative neutrino mass in an alternative $U(1)_{B-L}$ gauge symmetry NUMBER P17034 AUTHOR Takaaki Nomura, Hiroshi Okada TITLE Radiative neutrino mass in an alternative $U(1)_{B-L}$ gauge symmetry ARCHIVE FILE JOURNAL ABSTRACT
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Loop induced type-II seesaw model and GeV dark matter with $U(1)_{B-L}$ gauge symmetry Title : Loop induced type-II seesaw model and GeV dark matter with $U(1)_{B-L}$ gauge symmetry Author : Takaaki Nomura, Hiroshi Okada Journal :
Loop induced type-II seesaw model and GeV dark matter with $U(1)_{B-L}$ gauge symmetry NUMBER P17031 AUTHOR Takaaki Nomura, Hiroshi Okada TITLE Loop induced type-II seesaw model and GeV dark matter with $U(1)_{B-L}$ gauge symmetry ARCHIVE FILE JOURNAL ABSTRACT
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$L_mu -L_tau$ gauge-boson production from LFV $tau$ decays at Belle II Title : $L_mu -L_tau$ gauge-boson production from LFV $tau$ decays at Belle II Author : Chuan-Hung Cheng, Takaaki Nomura Journal :
$L_mu -L_tau$ gauge-boson production from LFV $tau$ decays at Belle II NUMBER P17025 AUTHOR Chuan-Hung Cheng, Takaaki Nomura TITLE $L_mu -L_tau$ gauge-boson production from LFV $tau$ decays at Belle II ARCHIVE FILE JOURNAL ABSTRACT
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Loop suppressed light fermion masses with $U(1)_R$ gauge symmetry Title : Loop suppressed light fermion masses with $U(1)_R$ gauge symmetry Author : Takaaki Nomura, Hiroshi Okada Journal :
Loop suppressed light fermion masses with $U(1)_R$ gauge symmetry NUMBER P17023 AUTHOR Takaaki Nomura, Hiroshi Okada TITLE Loop suppressed light fermion masses with $U(1)_R$ gauge symmetry ARCHIVE arXiv:1704.03382 FILE JOURNAL ABSTRACT
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Generation of radiative neutrino mass in the linear seesaw framework, charged lepton flavor violation and dark matter Title : Generation of radiative neutrino mass in the linear seesaw framework, charged lepton flavor violation and dark matter Author : Arindam Das, Takaaki Nomura, Hiroshi Okada, Sourov Roy Journal :
Generation of radiative neutrino mass in the linear seesaw framework, charged lepton flavor violation and dark matter NUMBER P17018 AUTHOR Arindam Das, Takaaki Nomura, Hiroshi Okada, Sourov Roy TITLE Generation of radiative neutrino mass in the linear seesaw framework, charged lepton flavor violation and dark matter ARCHIVE arXiv:1704.02078 FILE JOURNAL ABSTRACT
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$bar Bto D^{(*)} tau barnu$ and $tau$ polarization in a generic two-Higgs-doublet model Title : $bar Bto D^{(*)} tau barnu$ and $tau$ polarization in a generic two-Higgs-doublet model Author : Chuan-Hung Cheng, Takaaki Nomura Journal :
$bar Bto D^{(*)} tau barnu$ and $tau$ polarization in a generic two-Higgs-doublet model NUMBER P17017 AUTHOR Chuan-Hung Cheng, Takaaki Nomura TITLE $bar Bto D^{(*)} tau barnu$ and $tau$ polarization in a generic two-Higgs-doublet model ARCHIVE arXiv:1703.03646 FILE JOURNAL ABSTRACT
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Excesses of muon $g-2$, $R_{D^{(ast)}}$, and $R_K$ in a leptoquark model Title : Excesses of muon $g-2$, $R_{D^{(ast)}}$, and $R_K$ in a leptoquark model Author : Chuan-Hung Cheng, Takaaki Nomura, Hiroshi Okada Journal :
Excesses of muon $g-2$, $R_{D^{(ast)}}$, and $R_K$ in a leptoquark model NUMBER P17016 AUTHOR Chuan-Hung Cheng, Takaaki Nomura, Hiroshi Okada TITLE Excesses of muon $g-2$, $R_{D^{(ast)}}$, and $R_K$ in a leptoquark model ARCHIVE arXiv:1703.03251 FILE JOURNAL ABSTRACT
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Radiatively Induced Neutrino Mass Model with Flavor Dependent Gauge Symmetry Title : Radiatively Induced Neutrino Mass Model with Flavor Dependent Gauge Symmetry Author : SangJong Lee, Takaaki Nomura, Hiroshi Okada Journal :
Radiatively Induced Neutrino Mass Model with Flavor Dependent Gauge Symmetry NUMBER P17013 AUTHOR SangJong Lee, Takaaki Nomura, Hiroshi Okada TITLE Radiatively Induced Neutrino Mass Model with Flavor Dependent Gauge Symmetry ARCHIVE arXiv:1702.03733 FILE JOURNAL ABSTRACT
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Discriminating leptonic Yukawa interactions with doubly charged scalar at the ILC Title : Discriminating leptonic Yukawa interactions with doubly charged scalar at the ILC Author : Takaaki Nomura, Hiroshi Okada, Hiroshi Yokoya Journal :
Discriminating leptonic Yukawa interactions with doubly charged scalar at the ILC NUMBER P17012 AUTHOR Takaaki Nomura, Hiroshi Okada, Hiroshi Yokoya TITLE Discriminating leptonic Yukawa interactions with doubly charged scalar at the ILC ARCHIVE arXiv:1702.03396 FILE JOURNAL ABSTRACT
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Explaining $B to K^{(*)}ell^+ ell^-$ anomaly by radiatively induced coupling in $U(1)_{mu-tau}$ gauge symmetry Title : Explaining $B to K^{(*)}ell^+ ell^-$ anomaly by radiatively induced coupling in $U(1)_{mu-tau}$ gauge symmetry Author : P. Ko, Takaaki Nomura, Hiroshi Okada Journal :
Explaining $B to K^{(*)}ell^+ ell^-$ anomaly by radiatively induced coupling in $U(1)_{mu-tau}$ gauge symmetry NUMBER P17010 AUTHOR P. Ko, Takaaki Nomura, Hiroshi Okada TITLE Explaining $B to K^{(*)}ell^+ ell^-$ anomaly by radiatively induced coupling in $U(1)_{mu-tau}$ gauge symmetry ARCHIVE arXiv:1702.02699 FILE JOURNAL ABSTRACT
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A flavor dependent gauge symmetry, Predictive radiative seesaw and LHCb anomalies Title : A flavor dependent gauge symmetry, Predictive radiative seesaw and LHCb anomalies Author : P. Ko, Takaaki Nomura, Hiroshi Okada Journal :
A flavor dependent gauge symmetry, Predictive radiative seesaw and LHCb anomalies NUMBER P17007 AUTHOR P. Ko, Takaaki Nomura, Hiroshi Okada TITLE A flavor dependent gauge symmetry, Predictive radiative seesaw and LHCb anomalies ARCHIVE arXiv:1701.05788 FILE JOURNAL ABSTRACT
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A Three-loop Neutrino Model with Leptoquark Triplet Scalars Title : A Three-loop Neutrino Model with Leptoquark Triplet Scalars Author : Kingman Cheung, Takaaki Nomura, Hiroshi Okada Journal :
A Three-loop Neutrino Model with Leptoquark Triplet Scalars NUMBER P17002 AUTHOR Kingman Cheung, Takaaki Nomura, Hiroshi Okada TITLE A Three-loop Neutrino Model with Leptoquark Triplet Scalars ARCHIVE arXiv:1701.01080 FILE JOURNAL ABSTRACT
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Dark matter physics in neutrino specific two Higgs doublet model Title : Dark matter physics in neutrino specific two Higgs doublet model Author : Seungwon Baek, Takaaki Nomura Journal : JHEP 1703 (2017) 059
Dark matter physics in neutrino specific two Higgs doublet model NUMBER P16086 AUTHOR Seungwon Baek, Takaaki Nomura TITLE Dark matter physics in neutrino specific two Higgs doublet model ARCHIVE arXiv:1611.09145 FILE JOURNAL JHEP 1703 (2017) 059 ABSTRACT
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A Three-loop Neutrino Mass Model with a Colored Triplet Scalar Title : A Three-loop Neutrino Mass Model with a Colored Triplet Scalar Author : Kingman Cheung, Takaaki Nomura, Hiroshi Okada Journal : Phys. Rev. D95 (2017) no.1, 015026
A Three-loop Neutrino Mass Model with a Colored Triplet Scalar NUMBER P16080 AUTHOR Kingman Cheung, Takaaki Nomura, Hiroshi Okada TITLE A Three-loop Neutrino Mass Model with a Colored Triplet Scalar ARCHIVE arXiv:1610.04986 FILE JOURNAL Phys. Rev. D95 (2017) no.1, 015026 ABSTRACT
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A Radiative Neutrino Model with $SU(2)_L$ Triplet Fields Title : A Radiative Neutrino Model with $SU(2)_L$ Triplet Fields Author : Takaaki Nomura, Hiroshi Okada, Yuta Orikasa Journal : Phys. Rev. D94 (2016) no.11, 115018
A Radiative Neutrino Model with $SU(2)_L$ Triplet Fields NUMBER P16079 AUTHOR Takaaki Nomura, Hiroshi Okada, Yuta Orikasa TITLE A Radiative Neutrino Model with $SU(2)_L$ Triplet Fields ARCHIVE arXiv:1610.04729 FILE JOURNAL Phys. Rev. D94 (2016) no.11, 115018 ABSTRACT
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A testable radiative neutrino mass model without additional symmetries and Explanation for the $b to s ell^+ ell^-$ anomaly Title : A testable radiative neutrino mass model without additional symmetries and Explanation for the $b to s ell^+ ell^-$ anomaly Author : Kingman Cheung, Takaaki Nomura, Hiroshi Okada Journal : Phys. Rev. D94 (2016) 115024
A testable radiative neutrino mass model without additional symmetries and Explanation for the $b to s ell^+ ell^-$ anomaly NUMBER P16073 AUTHOR Kingman Cheung, Takaaki Nomura, Hiroshi Okada TITLE A testable radiative neutrino mass model without additional symmetries and Explanation for the $b to s ell^+ ell^-$ anomaly ARCHIVE arXiv:1610.02322 FILE JOURNAL Phys. Rev. D94 (2016) 115024 ABSTRACT
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Search for a light charged Higgs in a two-Higgs-doublet type II seesaw model at the LHC Title : Search for a light charged Higgs in a two-Higgs-doublet type II seesaw model at the LHC Author : Chuan-Hung Cheng, Takaaki Nomura Journal : Phys. Lett. B767 (2017) 443-449
Search for a light charged Higgs in a two-Higgs-doublet type II seesaw model at the LHC NUMBER P16070 AUTHOR Chuan-Hung Cheng, Takaaki Nomura TITLE Search for a light charged Higgs in a two-Higgs-doublet type II seesaw model at the LHC ARCHIVE arXiv:1609.01874 FILE JOURNAL Phys. Lett. B767 (2017) 443-449 ABSTRACT
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Two-loop Induced Majorana Neutrino Mass in a Radiatively Induced Quark and Lepton Mass Model Title : Two-loop Induced Majorana Neutrino Mass in a Radiatively Induced Quark and Lepton Mass Model Author : Takaaki Nomura, Hiroshi Okada Journal : Phys. Rev. D94 (2016) no.9, 093006
Two-loop Induced Majorana Neutrino Mass in a Radiatively Induced Quark and Lepton Mass Model NUMBER P16068 AUTHOR Takaaki Nomura, Hiroshi Okada TITLE Two-loop Induced Majorana Neutrino Mass in a Radiatively Induced Quark and Lepton Mass Model ARCHIVE arXiv:1609.01504 FILE JOURNAL Phys. Rev. D94 (2016) no.9, 093006 ABSTRACT
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A Colored KNT Neutrino Model Title : A Colored KNT Neutrino Model Author : Takaaki Nomura, Hiroshi Okada, Nobuchika Okada Journal : Phys. Lett. B762 (2016) 409-414
A Colored KNT Neutrino Model NUMBER P16057 AUTHOR Takaaki Nomura, Hiroshi Okada, Nobuchika Okada TITLE A Colored KNT Neutrino Model ARCHIVE arXiv:1608.02694 FILE JOURNAL Phys. Lett. B762 (2016) 409-414 ABSTRACT
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Light gauge boson in rare $K$ decay Title : Light gauge boson in rare $K$ decay Author : Chuan-Hung Cheng, Takaaki Nomura Journal : Phys. Lett. B763 (2016) 304-307
Light gauge boson in rare $K$ decay NUMBER P16055 AUTHOR Chuan-Hung Cheng, Takaaki Nomura TITLE Light gauge boson in rare $K$ decay ARCHIVE arXiv:1608.02311 FILE JOURNAL Phys. Lett. B763 (2016) 304-307 ABSTRACT
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Phenomenology of dark matter in chiral U(1)$_X$ dark Sector Title : Phenomenology of dark matter in chiral U(1)$_X$ dark Sector Author : P. Ko, Takaaki Nomura Journal : Phys. Rev. D94 (2016) no.11, 115015
Phenomenology of dark matter in chiral U(1)$_X$ dark Sector NUMBER P16053 AUTHOR P. Ko, Takaaki Nomura TITLE Phenomenology of dark matter in chiral U(1)$_X$ dark Sector ARCHIVE arXiv:1607.06218 FILE JOURNAL Phys. Rev. D94 (2016) no.11, 115015 ABSTRACT
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An Extended Colored Zee-Babu Model Title : An Extended Colored Zee-Babu Model Author : Takaaki Nomura, Hiroshi Okada Journal : Phys. Rev. D94 (2016), 075021
An Extended Colored Zee-Babu Model NUMBER P16052 AUTHOR Takaaki Nomura, Hiroshi Okada TITLE An Extended Colored Zee-Babu Model ARCHIVE arXiv:1607.04952 FILE JOURNAL Phys. Rev. D94 (2016), 075021 ABSTRACT
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Explanation of $B to K^{(*)} ell^+ ell^-$ and muon $g-2$. and implications at the LHC Title : Explanation of $B to K^{(*)} ell^+ ell^-$ and muon $g-2$. and implications at the LHC Author : Chuan-Hung Cheng, Takaaki Nomura, Hiroshi Okada Journal : Phys. Rev. D94 (2016) 115005
Explanation of $B to K^{(*)} ell^+ ell^-$ and muon $g-2$. and implications at the LHC NUMBER P16051 AUTHOR Chuan-Hung Cheng, Takaaki Nomura, Hiroshi Okada TITLE Explanation of $B to K^{(*)} ell^+ ell^-$ and muon $g-2$. and implications at the LHC ARCHIVE arXiv:1607.04857 FILE JOURNAL Phys. Rev. D94 (2016) 115005 ABSTRACT
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Radiatively induced Quark and Lepton Mass Model Title : Radiatively induced Quark and Lepton Mass Model Author : Takaaki Nomura, Hiroshi Okada Journal : Phys. Lett. B761 (2016) 190
Radiatively induced Quark and Lepton Mass Model NUMBER P16046 AUTHOR Takaaki Nomura, Hiroshi Okada TITLE Radiatively induced Quark and Lepton Mass Model ARCHIVE arXiv:1606.09055 FILE JOURNAL Phys. Lett. B761 (2016) 190 ABSTRACT
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Phenomenology of an $SU(2)_1 times SU(2)_2 times U(1)_Y$ model at the LHC Title : Phenomenology of an $SU(2)_1 times SU(2)_2 times U(1)_Y$ model at the LHC Author : Chuan-Hung Cheng, Takaaki Nomura Journal : Phys. Rev. D95 (2017) no.1, 015015
Phenomenology of an $SU(2)_1 times SU(2)_2 times U(1)_Y$ model at the LHC NUMBER P16041 AUTHOR Chuan-Hung Cheng, Takaaki Nomura TITLE Phenomenology of an $SU(2)_1 times SU(2)_2 times U(1)_Y$ model at the LHC ARCHIVE arXiv:1606.03804 FILE JOURNAL Phys. Rev. D95 (2017) no.1, 015015 ABSTRACT
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An $SU(2)_L$ Septet Scalar Linking to Radiative Neutrino Model Title : An $SU(2)_L$ Septet Scalar Linking to Radiative Neutrino Model Author : Takaaki Nomura, Hiroshi Okada, Yuta Orikasa Journal : Phys. Rev. D94 (2016) no5, 055012
An $SU(2)_L$ Septet Scalar Linking to Radiative Neutrino Model NUMBER P16035 AUTHOR Takaaki Nomura, Hiroshi Okada, Yuta Orikasa TITLE An $SU(2)_L$ Septet Scalar Linking to Radiative Neutrino Model ARCHIVE arXiv:1605.02601 FILE JOURNAL Phys. Rev. D94 (2016) no5, 055012 ABSTRACT
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$A_4 times U(1)_{PQ}$ Model for the Lepton Flavor Structure and the Strong $CP$ problem Title : $A_4 times U(1)_{PQ}$ Model for the Lepton Flavor Structure and the Strong $CP$ problem Author : Takaaki Nomura, Yusuke Shimizu, Toshifumi Yamada Journal : JHEP 1606 (2016) 125
$A_4 times U(1)_{PQ}$ Model for the Lepton Flavor Structure and the Strong $CP$ problem NUMBER P16033 AUTHOR Takaaki Nomura, Yusuke Shimizu, Toshifumi Yamada TITLE $A_4 times U(1)_{PQ}$ Model for the Lepton Flavor Structure and the Strong $CP$ problem ARCHIVE arXiv:1604.07650 FILE JOURNAL JHEP 1606 (2016) 125 ABSTRACT
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An explanation of one loop induced $hto mu tau$ decay Title : An explanation of one loop induced $hto mu tau$ decay Author : Seungwon Baek, Takaaki Nomura, Hiroshi Okada Journal : Phys. Lett. B759 (2016) 91
An explanation of one loop induced $hto mu tau$ decay NUMBER P16030 AUTHOR Seungwon Baek, Takaaki Nomura, Hiroshi Okada TITLE An explanation of one loop induced $hto mu tau$ decay ARCHIVE arXiv:1604.03738 FILE JOURNAL Phys. Lett. B759 (2016) 91 ABSTRACT
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Single production of $X_{pm 5/3}$ and $Y_{mp 4/3}$ vectorlike quarks at the LHC Title : Single production of $X_{pm 5/3}$ and $Y_{mp 4/3}$ vectorlike quarks at the LHC Author : Chuan-Hung Cheng, Takaaki Nomura Journal : Phys. Rev. D94 (2016) no.3, 035001
Single production of $X_{pm 5/3}$ and $Y_{mp 4/3}$ vectorlike quarks at the LHC NUMBER P16026 AUTHOR Chuan-Hung Cheng, Takaaki Nomura TITLE Single production of $X_{pm 5/3}$ and $Y_{mp 4/3}$ vectorlike quarks at the LHC ARCHIVE arXiv:1603.05837 FILE JOURNAL Phys. Rev. D94 (2016) no.3, 035001 ABSTRACT
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Radiative Seesaw Model with Degenerate Majorana Dark Matter Title : Radiative Seesaw Model with Degenerate Majorana Dark Matter Author : Takaaki Nomura, Hiroshi Okada, Yuta Orikasa Journal : Phys. Rev. D93 (2016) no12, 113008
Radiative Seesaw Model with Degenerate Majorana Dark Matter NUMBER P16024 AUTHOR Takaaki Nomura, Hiroshi Okada, Yuta Orikasa TITLE Radiative Seesaw Model with Degenerate Majorana Dark Matter ARCHIVE arXiv:1603.04631 FILE JOURNAL Phys. Rev. D93 (2016) no12, 113008 ABSTRACT
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Radiative Neutrino Mass in Alternative Left-Right Symmetric Model Title : Radiative Neutrino Mass in Alternative Left-Right Symmetric Model Author : Takaaki Nomura, Hiroshi Okada, Yuta Orikasa Journal : Eur. Phys. J. C77 (2017) no.2, 103
Radiative Neutrino Mass in Alternative Left-Right Symmetric Model NUMBER P16020 AUTHOR Takaaki Nomura, Hiroshi Okada, Yuta Orikasa TITLE Radiative Neutrino Mass in Alternative Left-Right Symmetric Model ARCHIVE arXiv:1602.08302 FILE JOURNAL Eur. Phys. J. C77 (2017) no.2, 103 ABSTRACT
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Bounds on LFV Higgs decays in a vector-like lepton model and searching for doubly charged leptons at the LHC Title : Bounds on LFV Higgs decays in a vector-like lepton model and searching for doubly charged leptons at the LHC Author : Chuan-Hung Cheng, Takaaki Nomura Journal : Eur. Phys. J. C76 (2016) no.6, 353
Bounds on LFV Higgs decays in a vector-like lepton model and searching for doubly charged leptons at the LHC NUMBER P16019 AUTHOR Chuan-Hung Cheng, Takaaki Nomura TITLE Bounds on LFV Higgs decays in a vector-like lepton model and searching for doubly charged leptons at the LHC ARCHIVE arXiv:1602.07519 FILE JOURNAL Eur. Phys. J. C76 (2016) no.6, 353 ABSTRACT
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Confronting a New Three-loop Seesaw Model with the 750 GeV Diphoton Excess Title : Confronting a New Three-loop Seesaw Model with the 750 GeV Diphoton Excess Author : P. Ko, Takaaki Nomura, Hiroshi Okada, Yuta Orikasa Journal : Phys. Rev. D94 (2016) 013009
Confronting a New Three-loop Seesaw Model with the 750 GeV Diphoton Excess NUMBER P16018 AUTHOR P. Ko, Takaaki Nomura, Hiroshi Okada, Yuta Orikasa TITLE Confronting a New Three-loop Seesaw Model with the 750 GeV Diphoton Excess ARCHIVE arXiv:1602.07214 FILE JOURNAL Phys. Rev. D94 (2016) 013009 ABSTRACT
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Generalized Zee-Babu model with 750 GeV Diphoton Resonance Title : Generalized Zee-Babu model with 750 GeV Diphoton Resonance Author : Takaaki Nomura, Hiroshi Okada Journal : Phys. Lett. B756 (2016) 295-302
Generalized Zee-Babu model with 750 GeV Diphoton Resonance NUMBER P16011 AUTHOR Takaaki Nomura, Hiroshi Okada TITLE Generalized Zee-Babu model with 750 GeV Diphoton Resonance ARCHIVE arXiv:1601.07339 FILE JOURNAL Phys. Lett. B756 (2016) 295-302 ABSTRACT
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Mass Limit for Light Flavon with Residual Z_3 Symmetry Title : Mass Limit for Light Flavon with Residual Z_3 Symmetry Author : Yu Muramatsu, Takaaki Nomura, Yusuke Shimizu Journal :
Mass Limit for Light Flavon with Residual Z_3 Symmetry NUMBER Q16001 AUTHOR Yu Muramatsu, Takaaki Nomura, Yusuke Shimizu TITLE Mass Limit for Light Flavon with Residual Z_3 Symmetry ARCHIVE arXiv:1601.04788 FILE JOURNAL ABSTRACT
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Four-loop Radiative Seesaw Model with 750 GeV Diphoton Resonance Title : Four-loop Radiative Seesaw Model with 750 GeV Diphoton Resonance Author : Takaaki Nomura, Hiroshi Okada Journal :
Four-loop Radiative Seesaw Model with 750 GeV Diphoton Resonance NUMBER P16008 AUTHOR Takaaki Nomura, Hiroshi Okada TITLE Four-loop Radiative Seesaw Model with 750 GeV Diphoton Resonance ARCHIVE arXiv:1601.04516 FILE JOURNAL ABSTRACT
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Dark sector shining through the 750 GeV dark Higgs boson at the LHC Title : Dark sector shining through the 750 GeV dark Higgs boson at the LHC Author : P. Ko, Takaaki Nomura Journal :
Dark sector shining through the 750 GeV dark Higgs boson at the LHC NUMBER P16006 AUTHOR P. Ko, Takaaki Nomura TITLE Dark sector shining through the 750 GeV dark Higgs boson at the LHC ARCHIVE FILE JOURNAL ABSTRACT
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Four-loop Neutrino Model Inspired by Diphoton Excess at 750 GeV Title : Four-loop Neutrino Model Inspired by Diphoton Excess at 750 GeV Author : Takaaki Nomura, Hiroshi Okada Journal : Phys. Lett. B755 (2016) 306
Four-loop Neutrino Model Inspired by Diphoton Excess at 750 GeV NUMBER P16004 AUTHOR Takaaki Nomura, Hiroshi Okada TITLE Four-loop Neutrino Model Inspired by Diphoton Excess at 750 GeV ARCHIVE arXiv:1601.00386 FILE JOURNAL Phys. Lett. B755 (2016) 306 ABSTRACT
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Higgs singlet as a diphoton resonance in a vector-like quark model Title : Higgs singlet as a diphoton resonance in a vector-like quark model Author : R. Benbrik, Chuan-Hung Chen, Takaaki Nomura Journal : Phys. Rev. D93 (2016) no.5, 055034
Higgs singlet as a diphoton resonance in a vector-like quark model NUMBER P15066 AUTHOR R. Benbrik, Chuan-Hung Chen, Takaaki Nomura TITLE Higgs singlet as a diphoton resonance in a vector-like quark model ARCHIVE arXiv:1512.06028 FILE JOURNAL Phys. Rev. D93 (2016) no.5, 055034 ABSTRACT
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$h, Z to ell_i barell_j$, $Delta a_{mu}$, $tauto (3mu,mu gamma)$ in generic two-Higgs-doublet models Title : $h, Z to ell_i barell_j$, $Delta a_{mu}$, $tauto (3mu,mu gamma)$ in generic two-Higgs-doublet models Author : R. Benbrik, Chuan-Hung Chen, Takaaki Nomura Journal : Phys. Rev. D93 (2016) no.9, 095004
$h, Z to ell_i barell_j$, $Delta a_{mu}$, $tauto (3mu,mu gamma)$ in generic two-Higgs-doublet models NUMBER P15060 AUTHOR R. Benbrik, Chuan-Hung Chen, Takaaki Nomura TITLE $h, Z to ell_i barell_j$, $Delta a_{mu}$, $tauto (3mu,mu gamma)$ in generic two-Higgs-doublet models ARCHIVE arXiv:1511.08544 FILE JOURNAL Phys. Rev. D93 (2016) no.9, 095004 ABSTRACT
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SU(2)$_L times$SU(2)$_R$ minimal dark matter with 2 TeV $W$ Title : SU(2)$_L times$SU(2)$_R$ minimal dark matter with 2 TeV $W$ Author : P. Ko, Takaaki Nomura Journal : Phys. Lett. B753 (2016) 612
SU(2)$_L times$SU(2)$_R$ minimal dark matter with 2 TeV $W$ NUMBER P15057 AUTHOR P. Ko, Takaaki Nomura TITLE SU(2)$_L times$SU(2)$_R$ minimal dark matter with 2 TeV $W$ ARCHIVE arXiv:1510.07872 FILE JOURNAL Phys. Lett. B753 (2016) 612 ABSTRACT
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Diboson excess in the Higgs singlet and vector-like quark models Title : Diboson excess in the Higgs singlet and vector-like quark models Author : Chuan-Hung Cheng, Takaaki Nomura Journal : Phys.Rev. D92 (2015) 11, 115021
Diboson excess in the Higgs singlet and vector-like quark models NUMBER P15045 AUTHOR Chuan-Hung Cheng, Takaaki Nomura TITLE Diboson excess in the Higgs singlet and vector-like quark models ARCHIVE arXiv:1509.02039 FILE JOURNAL Phys.Rev. D92 (2015) 11, 115021 ABSTRACT
- 노사카, 토모키
- Research Fellow
- String Theory
- Office : 1529
- Tel : 2654 | Fax : 3870
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Exploring Instanton effects in Rank Deformed Super Chern-Simons Theories from Topological Strings Title : Exploring Instanton effects in Rank Deformed Super Chern-Simons Theories from Topological Strings Author : Sanefumi Moriyama, Shota Nakayama, Tomoki Nosaka Journal :
Exploring Instanton effects in Rank Deformed Super Chern-Simons Theories from Topological Strings NUMBER P17019 AUTHOR Sanefumi Moriyama, Shota Nakayama, Tomoki Nosaka TITLE Exploring Instanton effects in Rank Deformed Super Chern-Simons Theories from Topological Strings ARCHIVE FILE JOURNAL ABSTRACT It was known that the instanton effects in the grand potential of the
so-called (2,2) theory, which is the U(N)^4 circular quiver
superconformal Chern-Simons theory with levels (k,0,-k,0), is
described by the free energy of topological strings whose
Gopakumar-Vafa invariants coincide with those of del Pezzo D5
geometry. By consideringg the rank deformations
U(N)xU(N+M)xU(N+2M)xU(N) and U(N+M)xU(N)xU(N+M)xU(N), we classify the
known diagonal BPS indices by degrees. Together with other two types
of one-parameter rank deformations, we further propose to express the
grand potential with multiple rank deformations in terms of the free
energy of topological strings.
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Mass Deformed ABJM Theory on Three Sphere in Large N limit Title : Mass Deformed ABJM Theory on Three Sphere in Large N limit Author : Nosaka tomoki, Shimizu kazuma, Terashima seiji Journal :
Mass Deformed ABJM Theory on Three Sphere in Large N limit NUMBER P16060 AUTHOR Nosaka tomoki, Shimizu kazuma, Terashima seiji TITLE Mass Deformed ABJM Theory on Three Sphere in Large N limit ARCHIVE 1608.02654 FILE JOURNAL ABSTRACT In this paper the free energy of the mass deformed ABJM theory on S^3
in the large N limit is studied. We find new solutions of the large N
saddle point equation which exist for an arbitrary value of the mass
parameter, and compute the free energies for these solutions. We also
show that the solution corresponding to an asymptotically AdS_4
geometry is singular at a certain value of the mass parameter and does
not exist over this critical value. This result strongly suggest that
the mass deformed ABJM theory on S^3 has no gravity dual for the mass
parameter larger than the critical value.
- 니시와기, 겐지
- Research Fellow
- Particle Physics
- Office : 1437
- Tel : 3767 | Fax : 3870
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Brane-localized masses in magnetic compactifications Title : Brane-localized masses in magnetic compactifications Author : Makoto Ishida, Kenji Nishiwaki, Yoshiyuki Tatsuta Journal :
Brane-localized masses in magnetic compactifications NUMBER P17014 AUTHOR Makoto Ishida, Kenji Nishiwaki, Yoshiyuki Tatsuta TITLE Brane-localized masses in magnetic compactifications ARCHIVE arXiv:1701.06137 FILE JOURNAL ABSTRACT
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Di-higgs enhancement by neutral scalar as probe of new colored sector Title : Di-higgs enhancement by neutral scalar as probe of new colored sector Author : Koji Nakamura, Kenji Nishiwaki, Kin-ya Oda, Seong Chan Park, Yasuhiro Yamamoto Journal :
Di-higgs enhancement by neutral scalar as probe of new colored sector NUMBER P17006 AUTHOR Koji Nakamura, Kenji Nishiwaki, Kin-ya Oda, Seong Chan Park, Yasuhiro Yamamoto TITLE Di-higgs enhancement by neutral scalar as probe of new colored sector ARCHIVE arXiv:1701.06137 FILE JOURNAL ABSTRACT
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CP-violating phase on magnetized toroidal orbifolds Title : CP-violating phase on magnetized toroidal orbifolds Author : Tatsuo Kobayashi, Kenji Nishiwaki, Yoshiyuki Tatsuta Journal :
CP-violating phase on magnetized toroidal orbifolds NUMBER P16072 AUTHOR Tatsuo Kobayashi, Kenji Nishiwaki, Yoshiyuki Tatsuta TITLE CP-violating phase on magnetized toroidal orbifolds ARCHIVE arXiv:1609.08608 FILE JOURNAL ABSTRACT
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Supersymmetry in 6d Dirac Action Title : Supersymmetry in 6d Dirac Action Author : Yukihiro Fujimoto, Kouhei Hasegawa, Kenji Nishiwaki, Makoto Sakamoto, Kentaro Tatsumi Journal :
Supersymmetry in 6d Dirac Action NUMBER P16067 AUTHOR Yukihiro Fujimoto, Kouhei Hasegawa, Kenji Nishiwaki, Makoto Sakamoto, Kentaro Tatsumi TITLE Supersymmetry in 6d Dirac Action ARCHIVE arXiv:1609.04565 FILE JOURNAL ABSTRACT
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6d Dirac fermion on a rectangle; scrutinizing boundary conditions, mode functions and spectrum Title : 6d Dirac fermion on a rectangle; scrutinizing boundary conditions, mode functions and spectrum Author : Yukihiro Fujimoto, Kouhei Hasegawa, Kenji Nishiwaki, Makoto Sakamoto, Kentaro Tatsumi Journal :
6d Dirac fermion on a rectangle; scrutinizing boundary conditions, mode functions and spectrum NUMBER P16066 AUTHOR Yukihiro Fujimoto, Kouhei Hasegawa, Kenji Nishiwaki, Makoto Sakamoto, Kentaro Tatsumi TITLE 6d Dirac fermion on a rectangle; scrutinizing boundary conditions, mode functions and spectrum ARCHIVE arXiv:1609.01413 FILE JOURNAL ABSTRACT
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Comprehensive Analysis of Yukawa Hierarchies on $T^2/Z_N$ with Magnetic Fluxes Title : Comprehensive Analysis of Yukawa Hierarchies on $T^2/Z_N$ with Magnetic Fluxes Author : Yukihiro Fujimoto, Tatsuo Kobayashi, Kenji Nishiwaki, Makoto Sakamoto, Yoshiyuki Tatsuta Journal : Phys.Rev. D94 (2016) 035031
Comprehensive Analysis of Yukawa Hierarchies on $T^2/Z_N$ with Magnetic Fluxes NUMBER P16032 AUTHOR Yukihiro Fujimoto, Tatsuo Kobayashi, Kenji Nishiwaki, Makoto Sakamoto, Yoshiyuki Tatsuta TITLE Comprehensive Analysis of Yukawa Hierarchies on $T^2/Z_N$ with Magnetic Fluxes ARCHIVE arXiv:1605.00140 FILE JOURNAL Phys.Rev. D94 (2016) 035031 ABSTRACT
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LHC constraints and prospects for S1 scalar leptoquark explaining the Bbar -> D(*) τ νbar anomaly Title : LHC constraints and prospects for S1 scalar leptoquark explaining the Bbar -> D(*) τ νbar anomaly Author : Béranger Dumont, Kenji Nishiwaki, Ryoutaro Watanabe Journal : Phys.Rev. D94 (2016) 034001
LHC constraints and prospects for S1 scalar leptoquark explaining the Bbar -> D(*) τ νbar anomaly NUMBER P16023 AUTHOR Béranger Dumont, Kenji Nishiwaki, Ryoutaro Watanabe TITLE LHC constraints and prospects for S1 scalar leptoquark explaining the Bbar -> D(*) τ νbar anomaly ARCHIVE arXiv:1603.05248 FILE JOURNAL Phys.Rev. D94 (2016) 034001 ABSTRACT
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Double Froggatt-Nielsen Mechanism Title : Double Froggatt-Nielsen Mechanism Author : Kenji Nishiwaki, Yusuke Shimizu, Yoshiyuki Tatsuta Journal : Prog. Theor. Exp. Phys. (2016) 083B05
Double Froggatt-Nielsen Mechanism NUMBER P16014 AUTHOR Kenji Nishiwaki, Yusuke Shimizu, Yoshiyuki Tatsuta TITLE Double Froggatt-Nielsen Mechanism ARCHIVE arXiv:1602.00890 FILE JOURNAL Prog. Theor. Exp. Phys. (2016) 083B05 ABSTRACT
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Active Dirac Neutrinos via SU(2)_L Doublets in 5d Title : Active Dirac Neutrinos via SU(2)_L Doublets in 5d Author : Yukihiro Fujimoto, K. Hasegawa, Tomoaki Nagasawa, Kenji Nishiwaki, Makoto Sakamoto, Kentaro Tatsumi Journal : JHEP 1606 (2016) 178
Active Dirac Neutrinos via SU(2)_L Doublets in 5d NUMBER P16007 AUTHOR Yukihiro Fujimoto, K. Hasegawa, Tomoaki Nagasawa, Kenji Nishiwaki, Makoto Sakamoto, Kentaro Tatsumi TITLE Active Dirac Neutrinos via SU(2)_L Doublets in 5d ARCHIVE arXiv:1601.05265 FILE JOURNAL JHEP 1606 (2016) 178 ABSTRACT
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LHC 750 GeV Diphoton excess in a radiative seesaw model Title : LHC 750 GeV Diphoton excess in a radiative seesaw model Author : Shinya Kanemura, Kenji Nishiwaki, Hiroshi Okada, Yuta Orikasa, Seong Chan Park, Ryoutaro Watanabe Journal : PTEP 2016 (2016) no.12, 123B04
LHC 750 GeV Diphoton excess in a radiative seesaw model NUMBER P15067 AUTHOR Shinya Kanemura, Kenji Nishiwaki, Hiroshi Okada, Yuta Orikasa, Seong Chan Park, Ryoutaro Watanabe TITLE LHC 750 GeV Diphoton excess in a radiative seesaw model ARCHIVE arXiv:1512.09048 FILE JOURNAL PTEP 2016 (2016) no.12, 123B04 ABSTRACT
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Leptoquark explanation of $h to mu tau$ and muon (g-2) Title : Leptoquark explanation of $h to mu tau$ and muon (g-2) Author : Seungwon Baek, Kenji Nishiwaki Journal : Phys.Rev. D93 (2016) no.1, 015002
Leptoquark explanation of $h to mu tau$ and muon (g-2) NUMBER P15052 AUTHOR Seungwon Baek, Kenji Nishiwaki TITLE Leptoquark explanation of $h to mu tau$ and muon (g-2) ARCHIVE FILE JOURNAL Phys.Rev. D93 (2016) no.1, 015002 ABSTRACT
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A Three Loop Neutrino Model with Isolated $k^{pmpm}$ Title : A Three Loop Neutrino Model with Isolated $k^{pmpm}$ Author : Kenji Nishiwaki, Hiroshi Okada, Yuta Orikasa Journal : Phys.Rev. D92 (2015) no.9, 093013
A Three Loop Neutrino Model with Isolated $k^{pmpm}$ NUMBER P15035 AUTHOR Kenji Nishiwaki, Hiroshi Okada, Yuta Orikasa TITLE A Three Loop Neutrino Model with Isolated $k^{pmpm}$ ARCHIVE FILE JOURNAL Phys.Rev. D92 (2015) no.9, 093013 ABSTRACT
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Classification of three-generation models on magnetized orbifolds Title : Classification of three-generation models on magnetized orbifolds Author : Tomo-hiro Abe, Yukihiro Fujimoto, Tatsuo Kobayashi, Takashi Miura, Kenji Nishiwaki, Makoto Sakamoto, Yoshiyuki Tatsuta Journal : Nucl. Phys. B894 (2015) 374
Classification of three-generation models on magnetized orbifolds NUMBER P15002 AUTHOR Tomo-hiro Abe, Yukihiro Fujimoto, Tatsuo Kobayashi, Takashi Miura, Kenji Nishiwaki, Makoto Sakamoto, Yoshiyuki Tatsuta TITLE Classification of three-generation models on magnetized orbifolds ARCHIVE arXiv:1501.02787 FILE JOURNAL Nucl. Phys. B894 (2015) 374 ABSTRACT
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Realization of the Lepton Flavor Structure from Point Interactions Title : Realization of the Lepton Flavor Structure from Point Interactions Author : Yukihiro Fujimoto, Kenji Nishiwaki, Makoto Sakamoto, Ryo Takahashi Journal : Proceedings of the conference, 3rd International Conference on New Frontiers in Physics
Realization of the Lepton Flavor Structure from Point Interactions NUMBER P14072 AUTHOR Yukihiro Fujimoto, Kenji Nishiwaki, Makoto Sakamoto, Ryo Takahashi TITLE Realization of the Lepton Flavor Structure from Point Interactions ARCHIVE arXiv:1412.2519 FILE JOURNAL Proceedings of the conference, 3rd International Conference on New Frontiers in Physics ABSTRACT
- 니에, 신
- Research Fellow
- Hyperbolic geometry
- Office : 7317
- Tel : 3835 | Fax : 3820
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- 로사, 다리오
- Research Fellow
- High Energy Physics
- Office : 1529
- Tel : 2653 | Fax : 3870
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The coupling of Poisson sigma models to topological backgrounds Title : The coupling of Poisson sigma models to topological backgrounds Author : Rosa, Dario Journal : Journal of High Energy Physics (JHEP12 (2016) 043)
The coupling of Poisson sigma models to topological backgrounds NUMBER P16082 AUTHOR Rosa, Dario TITLE The coupling of Poisson sigma models to topological backgrounds ARCHIVE 1610.05659 FILE JOURNAL Journal of High Energy Physics (JHEP12 (2016) 043) ABSTRACT We extend the coupling to the topological backgrounds, recently worked
out for the 2-dimensional BF-model, to the most general Poisson sigma
models. The coupling involves the choice of a Casimir function on the
target manifold and modifies the BRST transformations. This in turn
induces a change in the BRST cohomology of the resulting theory. The
observables of the coupled theory are analyzed and their geometrical
intrepretation
intrepretation is given. We finally couple the theory to 2-dimensional
topological gravity: this is the first step to study a topological string theory
in propagation on a Poisson manifold. As an application, we show that
the gauge-fixed vectorial supersymmetry of the Poisson sigma models
has a natural explanation in terms of the theory coupled to topological
gravity.
- 리, 진미안
- Project Research Fellow
- Office : 1532
- Tel : 2532 | Fax : 02-958-3870
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Characterizing Higgs portal dark matter models at the ILC Title : Characterizing Higgs portal dark matter models at the ILC Author : Teruki Kamon, P. Ko, Jinmian Li Journal :
Characterizing Higgs portal dark matter models at the ILC NUMBER P17033 AUTHOR Teruki Kamon, P. Ko, Jinmian Li TITLE Characterizing Higgs portal dark matter models at the ILC ARCHIVE arXiv:1705.02149 FILE JOURNAL ABSTRACT
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Minimal renormalizable simplified dark matter model with a pseudoscalar mediator Title : Minimal renormalizable simplified dark matter model with a pseudoscalar mediator Author : Seungwon Baek, P. Ko, Jinmian Li Journal :
Minimal renormalizable simplified dark matter model with a pseudoscalar mediator NUMBER P17004 AUTHOR Seungwon Baek, P. Ko, Jinmian Li TITLE Minimal renormalizable simplified dark matter model with a pseudoscalar mediator ARCHIVE 1701.04131 FILE JOURNAL ABSTRACT
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Implication of the ALEPH 30 GeV dimuon resonance at the LHC Title : Implication of the ALEPH 30 GeV dimuon resonance at the LHC Author : P. Ko, Jinmian Li, Chaehyun Yu Journal :
Implication of the ALEPH 30 GeV dimuon resonance at the LHC NUMBER P16085 AUTHOR P. Ko, Jinmian Li, Chaehyun Yu TITLE Implication of the ALEPH 30 GeV dimuon resonance at the LHC ARCHIVE arXiv:1610.07526 FILE JOURNAL ABSTRACT
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Interference effects of two scalar boson propagators on the LHC search for the singlet fermion DM Title : Interference effects of two scalar boson propagators on the LHC search for the singlet fermion DM Author : P. Ko Jinmian Li Journal :
Interference effects of two scalar boson propagators on the LHC search for the singlet fermion DM NUMBER P16076 AUTHOR P. Ko Jinmian Li TITLE Interference effects of two scalar boson propagators on the LHC search for the singlet fermion DM ARCHIVE FILE JOURNAL ABSTRACT
- 리, 치펭
- Project Research Fellow
- Algebraic Geometry
- Office : 1531
- Tel : 2531 | Fax : 3786
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- 리아오, 시아
- Research Fellow
- Algebraic Geometry
- Office : 7317
- Tel : 3846 | Fax : 3820
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- 리우, 레이
- Research Fellow
- Computational Biophysics
- Office : 7320
- Tel : 3819 | Fax : 3820
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- 마츠이, 토시노리
- Project Research Fellow
- Office : 8206
- Tel : 2663 | Fax :
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Gravitational waves and Higgs boson couplings for exploring first order phase transition in the model with a singlet scalar field Title : Gravitational waves and Higgs boson couplings for exploring first order phase transition in the model with a singlet scalar field Author : Katsuya Hashino, Mitsuru Kakizaki, Shinya Kanemura, Pyungwon Ko, Toshinori Matsui Journal :
Gravitational waves and Higgs boson couplings for exploring first order phase transition in the model with a singlet scalar field NUMBER P16065 AUTHOR Katsuya Hashino, Mitsuru Kakizaki, Shinya Kanemura, Pyungwon Ko, Toshinori Matsui TITLE Gravitational waves and Higgs boson couplings for exploring first order phase transition in the model with a singlet scalar field ARCHIVE FILE JOURNAL ABSTRACT
- 모하메드 라짐, 시티 라우다
- Research Fellow
- Protein Folding
- Office : 7407
- Tel : 3812 | Fax :
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- 무니르, 소아입
- Research Fellow
- Particle Physics
- Office : 1328
- Tel : | Fax :
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Electroweak production of HIggs boson pairs in 2HDMs Title : Electroweak production of HIggs boson pairs in 2HDMs Author : Rikard Enberg, William Klemm, Stefano Moretti, Shoaib Munir Journal :
Electroweak production of HIggs boson pairs in 2HDMs NUMBER P17030 AUTHOR Rikard Enberg, William Klemm, Stefano Moretti, Shoaib Munir TITLE Electroweak production of HIggs boson pairs in 2HDMs ARCHIVE FILE JOURNAL ABSTRACT
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Light exotic Higgs bosons at the LHC Title : Light exotic Higgs bosons at the LHC Author : Munir, Shoaib Journal :
Light exotic Higgs bosons at the LHC NUMBER P17026 AUTHOR Munir, Shoaib TITLE Light exotic Higgs bosons at the LHC ARCHIVE FILE JOURNAL ABSTRACT
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Two Higgs bosons near 125 GeV in the NMSSM: beyond the narrow width approximation Title : Two Higgs bosons near 125 GeV in the NMSSM: beyond the narrow width approximation Author : Munir, Shoaib Journal :
Two Higgs bosons near 125 GeV in the NMSSM: beyond the narrow width approximation NUMBER P17020 AUTHOR Munir, Shoaib TITLE Two Higgs bosons near 125 GeV in the NMSSM: beyond the narrow width approximation ARCHIVE FILE JOURNAL ABSTRACT
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Electroweak production of light scalar-pseudoscalar pairs from extended Higgs sectors Title : Electroweak production of light scalar-pseudoscalar pairs from extended Higgs sectors Author : Rikard Enberg, William Klemm, Stefano Moretti, Shoaib Munir Journal :
Electroweak production of light scalar-pseudoscalar pairs from extended Higgs sectors NUMBER P16034 AUTHOR Rikard Enberg, William Klemm, Stefano Moretti, Shoaib Munir TITLE Electroweak production of light scalar-pseudoscalar pairs from extended Higgs sectors ARCHIVE FILE JOURNAL ABSTRACT
- 무커지, 스티르타
- QUC Research Fellow
- Office : 8404
- Tel : 2583 | Fax :
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- 미우라, 마코토
- Research Fellow
- Mirror Symmetry
- Office : 1539
- Tel : 2634 | Fax :
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- 박경배
- Research Fellow
- Low-dimensional topology
- Office : 1228
- Tel : 3726 | Fax : 3786
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- 박재현
- QUC Research Fellow
- Office :
- Tel : 2587 | Fax :
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Precise Higgs mass calculations in (non-)minimal supersymmetry at both high and low scales Title : Precise Higgs mass calculations in (non-)minimal supersymmetry at both high and low scales Author : Peter Athron, Jae-hyeon Park, Tom Steudtner, Dominik Stöckinger, Alexander Voigt Journal :
Precise Higgs mass calculations in (non-)minimal supersymmetry at both high and low scales NUMBER Q16008 AUTHOR Peter Athron, Jae-hyeon Park, Tom Steudtner, Dominik Stöckinger, Alexander Voigt TITLE Precise Higgs mass calculations in (non-)minimal supersymmetry at both high and low scales ARCHIVE FILE JOURNAL ABSTRACT
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LHC 750 GeV diphoton excess and muon (g-2) Title : LHC 750 GeV diphoton excess and muon (g-2) Author : Seungwon Baek, Jae-hyeon Park Journal : Physics Letters B
LHC 750 GeV diphoton excess and muon (g-2) NUMBER Q16003 AUTHOR Seungwon Baek, Jae-hyeon Park TITLE LHC 750 GeV diphoton excess and muon (g-2) ARCHIVE 1602.05588 FILE JOURNAL Physics Letters B ABSTRACT
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Fermion masses and mixings from heterotic orbifold models Title : Fermion masses and mixings from heterotic orbifold models Author : Jae-hyeon Park Journal :
Fermion masses and mixings from heterotic orbifold models NUMBER P05053 AUTHOR Jae-hyeon Park TITLE Fermion masses and mixings from heterotic orbifold models ARCHIVE FILE JOURNAL ABSTRACT We search for a possibility of getting realistic fermion mass ratios and
mixing angles from renormalizable couplings on the Z_6-I heterotic
orbifold with one pair of Higgs doublets. In the quark sector, we find
cases with reasonable m_c/m_t, m_s/m_b, and V_{cb}, if we ignore the
first family. In the lepton sector, we can fit the charged lepton mass ratios,
the neutrino mass squared difference ratio, and the lepton mixing angles,
considering all three families.
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Lepton masses and mixing angles from heterotic orbifold models Title : Lepton masses and mixing angles from heterotic orbifold models Author : Pyungwon Ko, Tatsuo Kobayashi, Jae-hyeon Park Journal :
Lepton masses and mixing angles from heterotic orbifold models NUMBER P05020 AUTHOR Pyungwon Ko, Tatsuo Kobayashi, Jae-hyeon Park TITLE Lepton masses and mixing angles from heterotic orbifold models ARCHIVE hep-ph/0503029 FILE JOURNAL ABSTRACT
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Re (epsilon prime/epsilon_K) vs. B_d -> phi K_S CP asymmetry Title : Re (epsilon prime/epsilon_K) vs. B_d -> phi K_S CP asymmetry Author : Pyungwon Ko, Antonio Masiero, Jae-hyeon Park Journal :
Re (epsilon prime/epsilon_K) vs. B_d -> phi K_S CP asymmetry NUMBER P05019 AUTHOR Pyungwon Ko, Antonio Masiero, Jae-hyeon Park TITLE Re (epsilon prime/epsilon_K) vs. B_d -> phi K_S CP asymmetry ARCHIVE hep-ph/0503102 FILE JOURNAL ABSTRACT
- 박종육
- Research Fellow
- Combinatorics
- Office : 1222
- Tel : 3713 | Fax : 3820
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- 박지현
- Research Fellow
- Theoretical and Computational Biophysics
- Office : 7321
- Tel : 3814 | Fax : 3820
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- 박찬범
- Research Fellow
- Particle Physics
- Office : 1412
- Tel : 3793 | Fax : 3870
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Secluded singlet fermionic dark matter driven by the Fermi gamma-ray excess Title : Secluded singlet fermionic dark matter driven by the Fermi gamma-ray excess Author : Yeong Gyun Kim, Kang Young Lee, Chan Beom Park, Seodong Shin Journal : Phys. Rev. D 93, 075023 (2016)
Secluded singlet fermionic dark matter driven by the Fermi gamma-ray excess NUMBER P16005 AUTHOR Yeong Gyun Kim, Kang Young Lee, Chan Beom Park, Seodong Shin TITLE Secluded singlet fermionic dark matter driven by the Fermi gamma-ray excess ARCHIVE arXiv:1601.05089 FILE JOURNAL Phys. Rev. D 93, 075023 (2016) ABSTRACT
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Supersymmetric Higgs-portal and X-ray lines Title : Supersymmetric Higgs-portal and X-ray lines Author : Hyun Min Lee, Chan Beom Park, Myeonghun Park Journal : Phys.Lett. B744 (2015) 218-224
Supersymmetric Higgs-portal and X-ray lines NUMBER P15005 AUTHOR Hyun Min Lee, Chan Beom Park, Myeonghun Park TITLE Supersymmetric Higgs-portal and X-ray lines ARCHIVE arXiv:1501.05479 FILE JOURNAL Phys.Lett. B744 (2015) 218-224 ABSTRACT
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Resonant Higgs boson pair production in the hh -> bb WW -> bb l nu l nu decay channel Title : Resonant Higgs boson pair production in the hh -> bb WW -> bb l nu l nu decay channel Author : Victor Martin Lozano, Jesus M. Moreno, Chan Beom Park Journal : JHEP 1508 (2015) 004
Resonant Higgs boson pair production in the hh -> bb WW -> bb l nu l nu decay channel NUMBER P15003 AUTHOR Victor Martin Lozano, Jesus M. Moreno, Chan Beom Park TITLE Resonant Higgs boson pair production in the hh -> bb WW -> bb l nu l nu decay channel ARCHIVE arXiv:1501.03799 FILE JOURNAL JHEP 1508 (2015) 004 ABSTRACT
- 박철
- Research Fellow
- Number Theory
- Office : 1310
- Tel : 3860 | Fax : 3786
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- 박한철
- Research Fellow
- Toric Topology
- Office : 1438
- Tel : 3732 | Fax : 3786
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- 방정호
- Research Fellow
- Quantum Information
- Office : 7313
- Tel : 3807 | Fax :
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- 배진범
- Research Fellow
- High Energy Physics
- Office : 1435
- Tel : 3707 | Fax : 3870
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A Note on Vectorial AdS5/CFT4 Duality for Spin-j Boundary Title : A Note on Vectorial AdS5/CFT4 Duality for Spin-j Boundary Author : Jin-Beom Bae, Euihun Joung, Shailesh Lal Journal : JHEP12(2016)077
A Note on Vectorial AdS5/CFT4 Duality for Spin-j Boundary NUMBER P16083 AUTHOR Jin-Beom Bae, Euihun Joung, Shailesh Lal TITLE A Note on Vectorial AdS5/CFT4 Duality for Spin-j Boundary ARCHIVE 1611.00112 FILE JOURNAL JHEP12(2016)077 ABSTRACT
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3d N=2 minimal SCFTs from Wrapped M5-branes Title : 3d N=2 minimal SCFTs from Wrapped M5-branes Author : Jin-Beom Bae, Dongmin Gang, Jaehoon Lee Journal :
3d N=2 minimal SCFTs from Wrapped M5-branes NUMBER P16081 AUTHOR Jin-Beom Bae, Dongmin Gang, Jaehoon Lee TITLE 3d N=2 minimal SCFTs from Wrapped M5-branes ARCHIVE 1610.09259 FILE JOURNAL ABSTRACT
- 보우진, 쟝 에밀
- QUC Research Fellow
- Office :
- Tel : 2584 | Fax :
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(p,q)-webs of DIM representations, 5d N=1 instanton partition functions and qq-characters Title : (p,q)-webs of DIM representations, 5d N=1 instanton partition functions and qq-characters Author : Jean-Emile Bourgine, Masayuki Fukuda, Koichi Harada, Yutaka Matsuo, Rui-Dong Zhu Journal :
(p,q)-webs of DIM representations, 5d N=1 instanton partition functions and qq-characters NUMBER Q17015 AUTHOR Jean-Emile Bourgine, Masayuki Fukuda, Koichi Harada, Yutaka Matsuo, Rui-Dong Zhu TITLE (p,q)-webs of DIM representations, 5d N=1 instanton partition functions and qq-characters ARCHIVE 1703.10759 FILE JOURNAL ABSTRACT Instanton partition functions of N=1 5d Super Yang-Mills reduced on S1
can be engineered in type IIB string theory from the (p,q)-branes web
diagram. To this diagram is superimposed a web of representations of
the Ding-Iohara-Miki (DIM) algebra that acts on the partition
function. In this correspondence, each segment is associated to a
representation, and the (topological string) vertex is identified with
the intertwiner operator constructed by Awata, Feigin and Shiraishi.
We define a new intertwiner acting on the representation spaces of
levels (1,n)⊗(0,m)→(1,n+m), thereby generalizing to higher rank m the
original construction. It allows us to use a folded version of the
usual (p,q)-web diagram, bringing great simplifications to actual
computations. As a result, the characterization of Gaiotto states and
vertical intertwiners, previously obtained by some of the authors, is
uplifted to operator relations acting in the Fock space of horizontal
representations. We further develop a method to build qq-characters of
linear quivers based on the horizontal action of DIM elements. While
fundamental qq-characters can be built using the coproduct, higher
ones require the introduction of a (quantum) Weyl reflection acting on
tensor products of DIM generators.
- 비스와스, 산조이
- Research Fellow
- High energy physics - Collider Phenomenology
- Office : 1529
- Tel : 2547 | Fax : 3870
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Physics Behind Precision Title : Physics Behind Precision Author : P. Azzi, P. Azzurri, S. Biswas, F. Blekman, G. Corcella, S. De Curtis, J. Erler, N. Foppiani, I. Helenius, S. Jadach, P. Janot, F. Jegerlehner, P. Langacker, E. Locci, F. Margaroli, B. Mele, F. Piccinini, J. Reuter, M. Steinhauser, R. Tenchini, M. Vos, C. Zhang Journal :
Physics Behind Precision NUMBER P17022 AUTHOR P. Azzi, P. Azzurri, S. Biswas, F. Blekman, G. Corcella, S. De Curtis, J. Erler, N. Foppiani, I. Helenius, S. Jadach, P. Janot, F. Jegerlehner, P. Langacker, E. Locci, F. Margaroli, B. Mele, F. Piccinini, J. Reuter, M. Steinhauser, R. Tenchini, M. Vos, C. Zhang TITLE Physics Behind Precision ARCHIVE arXiv:1703.01626 FILE JOURNAL ABSTRACT
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Dark-photon searches via ZH production at e+e- colliders Title : Dark-photon searches via ZH production at e+e- colliders Author : Sanjoy Biswas, Emidio Gabrielli, Matti Heikinheimo, Barbara Mele Journal :
Dark-photon searches via ZH production at e+e- colliders NUMBER P17021 AUTHOR Sanjoy Biswas, Emidio Gabrielli, Matti Heikinheimo, Barbara Mele TITLE Dark-photon searches via ZH production at e+e- colliders ARCHIVE arXiv:1703.00402 FILE JOURNAL ABSTRACT
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Dark-Photon searches via Higgs-boson production at the LHC Title : Dark-Photon searches via Higgs-boson production at the LHC Author : Sanjoy Biswas, Emidio Gabrielli, Matti Heikinheimo, Barbara Mele Journal :
Dark-Photon searches via Higgs-boson production at the LHC NUMBER P16042 AUTHOR Sanjoy Biswas, Emidio Gabrielli, Matti Heikinheimo, Barbara Mele TITLE Dark-Photon searches via Higgs-boson production at the LHC ARCHIVE arXiv:1603.01377 FILE JOURNAL ABSTRACT
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Di-Higgs signature from R-parity violating supersymmetry as the origin of neutrino mass Title : Di-Higgs signature from R-parity violating supersymmetry as the origin of neutrino mass Author : Sanjoy Biswas, Eung Jin Chun, Pankaj Sharma Journal :
Di-Higgs signature from R-parity violating supersymmetry as the origin of neutrino mass NUMBER P16028 AUTHOR Sanjoy Biswas, Eung Jin Chun, Pankaj Sharma TITLE Di-Higgs signature from R-parity violating supersymmetry as the origin of neutrino mass ARCHIVE FILE JOURNAL ABSTRACT
- 샤, 사잇 이스나무딘
- Research Fellow
- Protein Folding
- Office : 7408
- Tel : 3875 | Fax : 3820
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- 서애령
- Research Fellow
- Complex Geometry
- Office : 1539
- Tel : 2636 | Fax : 3786
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- 송재원
- Research Fellow
- Theoretical High Energy Physics
- Office : 1409
- Tel : 3829 | Fax :
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Vertex operator algebras of Argyres-Douglas theories from M5-branes Title : Vertex operator algebras of Argyres-Douglas theories from M5-branes Author : Jaewon Song, Dan Xie, Wenbin Yan Journal :
Vertex operator algebras of Argyres-Douglas theories from M5-branes NUMBER P17032 AUTHOR Jaewon Song, Dan Xie, Wenbin Yan TITLE Vertex operator algebras of Argyres-Douglas theories from M5-branes ARCHIVE FILE JOURNAL ABSTRACT
- 송현미
- QUC Research Fellow
- Dark Energy Physics
- Office : 1321
- Tel : 3859 | Fax : 3870
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- 쉬, 삔삔
- Research Fellow
- Geometric Topology, Hyperbolic Geometry
- Office : 1538
- Tel : 3828 | Fax : 3786
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- 스네이쓰, 오웨인 니콜라스
- Research Fellow
- Astrophysics
- Office : 1321
- Tel : 3868 | Fax : 3870
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- 스리바스타바, 아밋
- Research Fellow
- Protein Folding
- Office : 7403
- Tel : 3895 | Fax :
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- 스카린치, 카를로스
- CMC Research Fellow
- 3D gravity
- Office : 8301
- Tel : 2647 | Fax :
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- 시아라파, 안토니오
- Research Fellow
- Theoretical Physics
- Office : 1328
- Tel : 2631 | Fax : 3870
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On Painleve/gauge theory correspondence Title : On Painleve/gauge theory correspondence Author : Sciarappa Antonio, Bonelli Giulio, Lisovyy Oleg, Maruyoshi Kazunobu, Tanzini Alessandro Journal :
On Painleve/gauge theory correspondence NUMBER P16087 AUTHOR Sciarappa Antonio, Bonelli Giulio, Lisovyy Oleg, Maruyoshi Kazunobu, Tanzini Alessandro TITLE On Painleve/gauge theory correspondence ARCHIVE FILE JOURNAL ABSTRACT
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Bethe/Gauge correspondence in odd dimension: modular double, non-perturbative corrections and open topological strings Title : Bethe/Gauge correspondence in odd dimension: modular double, non-perturbative corrections and open topological strings Author : Sciarappa, Antonio Journal :
Bethe/Gauge correspondence in odd dimension: modular double, non-perturbative corrections and open topological strings NUMBER P16039 AUTHOR Sciarappa, Antonio TITLE Bethe/Gauge correspondence in odd dimension: modular double, non-perturbative corrections and open topological strings ARCHIVE FILE JOURNAL ABSTRACT Bethe/Gauge correspondence as it is usually stated is ill-de fined in fi ve dimensions
and needs a non-perturbative completion; a related problem also appears in three
dimensions. It has been suggested that this problem, probably due to incompleteness of
Omega background regularization in odd dimension, may be solved if we consider gauge
theory on compact S^5 and S^3 geometries. We will develop this idea further by giving
a full Bethe/Gauge correspondence dictionary on S^5 and S^3 focussing mainly on the
eigenfunctions of (open and closed) relativistic 2-particle Toda chain and its quantized
spectral curve: these are most properly written in terms of non-perturbatively completed
NS open topological strings. A key ingredient is Faddeevs modular double structure
which is naturally implemented by the S^5 and S^3 geometries.
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On Elliptic Algebras and Large-n Supersymmetric Gauge Theories Title : On Elliptic Algebras and Large-n Supersymmetric Gauge Theories Author : Sciarappa Antonio, Koroteev Peter Journal :
On Elliptic Algebras and Large-n Supersymmetric Gauge Theories NUMBER P16010 AUTHOR Sciarappa Antonio, Koroteev Peter TITLE On Elliptic Algebras and Large-n Supersymmetric Gauge Theories ARCHIVE FILE JOURNAL ABSTRACT
- 신지용
- Research Fellow
- Probability Theory
- Office : 1310
- Tel : 3896 | Fax : 3786
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- 신지혜
- Research Fellow
- Astrophysics
- Office : 1328
- Tel : 2633 | Fax : 9870
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- 신형석
- Research Fellow
- Symplectic Geometry
- Office : 1228
- Tel : 2542 | Fax : 3786
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- 안태용
- Research Fellow
- Complex Analysis and Complex Dynamics
- Office : 1228
- Tel : 3831 | Fax : 3786
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- 애플비, 스티븐
- Research Fellow
- Office : 7406
- Tel : 3735 | Fax :
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- 양, 런치우
- QUC Research Fellow
- Office : 8405
- Tel : 2570 | Fax : 2590
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Strong energy condition and the fastest computers Title : Strong energy condition and the fastest computers Author : Yang, Runqiu Journal :
Strong energy condition and the fastest computers NUMBER Q16019 AUTHOR Yang, Runqiu TITLE Strong energy condition and the fastest computers ARCHIVE arXiv:1610.05090 FILE JOURNAL ABSTRACT
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On the critical behaviour of gapped gravitational collapse in confined spacetime Title : On the critical behaviour of gapped gravitational collapse in confined spacetime Author : Rong-Gen Cai, Li-Wei Ji, Run-Qiu Yang Journal :
On the critical behaviour of gapped gravitational collapse in confined spacetime NUMBER Q16018 AUTHOR Rong-Gen Cai, Li-Wei Ji, Run-Qiu Yang TITLE On the critical behaviour of gapped gravitational collapse in confined spacetime ARCHIVE arXiv: 1609.02804 FILE JOURNAL ABSTRACT
- 양민석
- Research Fellow
- Analysis of PDEs
- Office : 1421
- Tel : 3762 | Fax : 3870
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- 에브라힘라자드, 하빕
- Research Fellow
- Statistical Physics
- Office : 1535
- Tel : 2528 | Fax : 3870
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Characterizing rare fluctuations in soft particulate flows Title : Characterizing rare fluctuations in soft particulate flows Author : S.H.E. Rahbari, A.A. Saberi, Hyunggyu Park & J. Vollmer Journal : Nature Communications
Characterizing rare fluctuations in soft particulate flows NUMBER P17027 AUTHOR S.H.E. Rahbari, A.A. Saberi, Hyunggyu Park & J. Vollmer TITLE Characterizing rare fluctuations in soft particulate flows ARCHIVE FILE JOURNAL Nature Communications ABSTRACT
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Universality in boundary domain growth by sudden bridging Title : Universality in boundary domain growth by sudden bridging Author : A. A. Saberi, S. H. Ebrahimnazhad Rahbari, H. Dashti-Naserabadi, A. Abbasi,Y. S. Cho, J. Nagler Journal : Nature - Scientific Reports
Universality in boundary domain growth by sudden bridging NUMBER P16017 AUTHOR A. A. Saberi, S. H. Ebrahimnazhad Rahbari, H. Dashti-Naserabadi, A. Abbasi,Y. S. Cho, J. Nagler TITLE Universality in boundary domain growth by sudden bridging ARCHIVE FILE srep21110.pdf JOURNAL Nature - Scientific Reports ABSTRACT We report on universality in boundary domain growth in cluster
aggregation in the limit of maximum concentration. Maximal
concentration means that the diffusivity of the clusters is
effectively zero and, instead, clusters merge successively in a
percolation process, which leads to a sudden growth of the
boundary domains. For two-dimensional square lattices of
linear dimension $L$, independent of the models studied here,
we find that the maximum of the boundary interface width, the
susceptibility $chi$, exhibits the scaling $chi sim
L^{gamma}$ with the universal exponent $gamma = 1$. The
rapid growth of the boundary domain at the percolation
threshold, which is guaranteed to occur for almost {em any}
cluster percolation process, underlies the the universal
scaling of $chi$.
- 옥성민
- Research Fellow
- Graph polynomial
- Office : 1222
- Tel : 2571 | Fax : 3870
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- 유, 페이웬
- Research Fellow
- Theoretical High Engergy Physics
- Office : 1516
- Tel : 2566 | Fax : 3870
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Top-philic Scalar Dark Matter with a Vector-like Fermionic Top Partner Title : Top-philic Scalar Dark Matter with a Vector-like Fermionic Top Partner Author : Seungwon Baek, P.Ko, Peiwen Wu Journal :
Top-philic Scalar Dark Matter with a Vector-like Fermionic Top Partner NUMBER P16044 AUTHOR Seungwon Baek, P.Ko, Peiwen Wu TITLE Top-philic Scalar Dark Matter with a Vector-like Fermionic Top Partner ARCHIVE arXiv:1606.00072 FILE JOURNAL ABSTRACT
- 윤영호
- CMC Research Fellow
- Algebraic Geometry, Singularity
- Office : 8303
- Tel : 2649 | Fax : 02-958-2630
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- 이상욱
- Project Research Fellow
- Symplectic geometry
- Office : 8205
- Tel : | Fax :
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- 이상훈
- Research Fellow
- Statistical Physics
- Office : 1437
- Tel : 3743 | Fax : 3870
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- 이수용
- Research Fellow
- Quantum Information
- Office : 7312
- Tel : 2526 | Fax : 3820
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- 이윤호
- Research Fellow
- Theoretical and Computational Biophysics
- Office : 7314
- Tel : 3889 | Fax : 3820
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- 이은주
- Research Fellow
- Differential Geometry
- Office : 7316
- Tel : 3862 | Fax :
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- 이준호
- Research Fellow
- Theoretical and Computational Condensed Matter Physics
- Office : 1517
- Tel : 3836 | Fax : 3870
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Nature of the Insulating Ground State in 5d Postperovskite CaIrO3 Title : Nature of the Insulating Ground State in 5d Postperovskite CaIrO3 Author : Sun-Woo Kim, Chen Liu, Hyun-Jung Kim, Jun-Ho Lee, Yongxin Yao, Kai-Ming Ho, Jun-Hyung Cho Journal : Phys. Rev. Lett. 115, 096401 (2015)
Nature of the Insulating Ground State in 5d Postperovskite CaIrO3 NUMBER C15016 AUTHOR Sun-Woo Kim, Chen Liu, Hyun-Jung Kim, Jun-Ho Lee, Yongxin Yao, Kai-Ming Ho, Jun-Hyung Cho TITLE Nature of the Insulating Ground State in 5d Postperovskite CaIrO3 ARCHIVE arXiv:1501.01762 FILE JOURNAL Phys. Rev. Lett. 115, 096401 (2015) ABSTRACT The insulating ground state of the 5d transition metal oxide CaIrO3 has
been classified as a Mott-type insulator. Based on a systematic density
functional
theory (DFT) study with local, semilocal, and hybrid exchange-
correlation functionals, we reveal that the Ir t2g states exhibit large
splittings and one-
dimensional electronic states along the c axis due to a tetragonal crystal
field. Our hybrid DFT calculation adequately describes the
antiferromagnetic (AFM)
order along the c direction via a superexchange interaction between Ir4+
spins. Furthermore, the spin-orbit coupling (SOC) hybridizes the t2g
states to open an
insulating gap. These results indicate that CaIrO3 can be represented as
a spin-orbit Slater insulator, driven by the interplay between a long-
range AFM order
and the SOC. Such a Slater mechanism for the gap formation is also
demonstrated by the DFT + dynamical mean field theory calculation,
where the metal-
insulator transition and the paramagnetic to AFM phase transition are
concomitant with each other.
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Antiferromagnetic superexchange mediated by a resonant surface state in Sn/Si(111) Title : Antiferromagnetic superexchange mediated by a resonant surface state in Sn/Si(111) Author : Jun-Ho Lee, Xiao-Yan Ren, Yu Jia, Jun-Hyung Cho Journal : Phys. Rev. B 90, 125439 (2014)
Antiferromagnetic superexchange mediated by a resonant surface state in Sn/Si(111) NUMBER C14006 AUTHOR Jun-Ho Lee, Xiao-Yan Ren, Yu Jia, Jun-Hyung Cho TITLE Antiferromagnetic superexchange mediated by a resonant surface state in Sn/Si(111) ARCHIVE FILE JOURNAL Phys. Rev. B 90, 125439 (2014) ABSTRACT The Sn overlayer on the Si(111) surface has been considered as a
prototypical system for exploring two dimensional (2D) correlated
physics on the triangular lattice. Most of the previous
theoretical studies were based on the presumption that the surface state
dominantly originates from Sn dangling-bond (DB) electrons, leading to
a strongly correlated 2D electronic system. By
contrast, our density-functional theory calculations show that the Sn DB
state significantly hybridizes with Si substrate states to form a resonant
state. The strong resonance between the Sn
5p_z and Si 3p_z orbitals facilitates the recently observed
antiferromagnetic order through superexchange interactions, giving rise
to a band-gap opening. It is thus demonstrated that the
insulating ground state of Sn/Si(111) can be characterized as a Slater-
type insulator via band magnetism.
- 이창우
- Research Fellow
- Quantum Information
- Office : 7320
- Tel : 3755 | Fax : 3820
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- 임종수
- Research Fellow
- Mesoscopic transport, DMFT
- Office : 1427
- Tel : 3730 | Fax : 3870
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- 자비에 뒤항
- Research Fellow
- Statistical Physics
- Office : 1523
- Tel : 2564 | Fax : 3870
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- 장동훈
- Research Fellow
- Group actions on manifolds, Symplectic geometry
- Office : 1436
- Tel : 3746 | Fax : 3786
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Circle actions on almost complex manifolds with isolated fixed points Title : Circle actions on almost complex manifolds with isolated fixed points Author : Donghoon Jang Journal :
Circle actions on almost complex manifolds with isolated fixed points NUMBER M15010 AUTHOR Donghoon Jang TITLE Circle actions on almost complex manifolds with isolated fixed points ARCHIVE arXiv:1510.00952 FILE 1510.00952.pdf JOURNAL ABSTRACT The author proved that if the circle acts symplectically on a compact, connected symplectic manifold M with three fixed points, then M is equivariantly symplectomorphic to some standard action on $mathbb{CP}^2$. In this paper, we extend the result to a circle action on an almost complex manifold; if the circle acts on a compact, connected almost complex manifold M with exactly three fixed points, then $dim M=4$. Moreover, we deal with the cases of one fixed point and two fixed points.
- 정승조
- Research Fellow
- Algebraic Geometry
- Office : 1434
- Tel : 3775 | Fax : 3786
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- 제인, 비티카
- Research Fellow
- Particle Physics
- Office : 1404-A
- Tel : 3830 | Fax :
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A Perturbative RS I Cosmological Phase Transition Title : A Perturbative RS I Cosmological Phase Transition Author : Bunk Don, Hubisz Jay, Jain Bithika Journal :
A Perturbative RS I Cosmological Phase Transition NUMBER P17028 AUTHOR Bunk Don, Hubisz Jay, Jain Bithika TITLE A Perturbative RS I Cosmological Phase Transition ARCHIVE FILE JOURNAL ABSTRACT We identify a class of Randall-Sundrum type models with a successful first order
cosmological phase transition during which a 5D dual of approximate conformal
symmetry is spontaneously broken. Our focus is on soft-wall models that naturally realize
a light radion/dilaton and suppressed dynamical contribution to the cosmological constant.
We discuss phenomenology of the phase transition after developing a theoretical and
numerical analysis of these models both at zero and finite temperature. A TeV-Planck
hierarchy can be cosmologically generated where the UV value of the curvature
corresponds, via AdS/CFT, to an $N$ as large as $20$, where 5D gravity is expected to be
firmly in the perturbative regime.
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LHC resonance searches in the $tbar{t} Z$ final state Title : LHC resonance searches in the $tbar{t} Z$ final state Author : Backovic Mihailo, Flacke Thomas, Jain Bithika, Lee Seung J. Journal :
LHC resonance searches in the $tbar{t} Z$ final state NUMBER P16078 AUTHOR Backovic Mihailo, Flacke Thomas, Jain Bithika, Lee Seung J. TITLE LHC resonance searches in the $tbar{t} Z$ final state ARCHIVE Hep-ph/1610.08810 FILE JOURNAL ABSTRACT
- 조길영
- Research Fellow
- Office : 1435
- Tel : 2517 | Fax :
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- 조유미
- Research Fellow
- Partial differential equations
- Office : 1419
- Tel : 3844 | Fax : 3786
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- 주다스
- Research Fellow
- Low-dimensional topology
- Office : 1426
- Tel : 3858 | Fax : 3820
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Non-Kahler complex structures on R^4 II Title : Non-Kahler complex structures on R^4 II Author : Di Scala Antonio J., Kasuya Naohiko, Zuddas Daniele Journal :
Non-Kahler complex structures on R^4 II NUMBER M16005 AUTHOR Di Scala Antonio J., Kasuya Naohiko, Zuddas Daniele TITLE Non-Kahler complex structures on R^4 II ARCHIVE 1511.08471 FILE Non-Kahler-II.pdf JOURNAL ABSTRACT We follow our study of non-Kahler complex structures on R^4 that we defined in a
previous paper. We prove that these complex surfaces do not admit any smooth complex
compactification. Moreover, we give an explicit description of their meromorphic
functions. We also prove that the Picard groups of these complex surfaces are
uncountable, and give an explicit description of the canonical bundle. Finally, we show
that any connected non-compact oriented 4-manifold admits complex structures without
Kahler metrics.
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On branched covering representation of 4-manifolds Title : On branched covering representation of 4-manifolds Author : Piergallini Riccardo, Zuddas Daniele Journal :
On branched covering representation of 4-manifolds NUMBER M16003 AUTHOR Piergallini Riccardo, Zuddas Daniele TITLE On branched covering representation of 4-manifolds ARCHIVE 1602.07459 FILE BC4-manifolds.pdf JOURNAL ABSTRACT We provide new branched covering representations for bounded and/or non-compact 4-
manifolds, which extend the known ones for closed 4-manifolds.
Assuming M to be a connected oriented PL 4-manifold, our main results are the following:
(1) if M is compact with (possibly empty) boundary, then it is a simple branched cover of
S^4 minus some 4-balls; (2) if M is open, then it is a simple branched cover of S^4 minus
the end space of M, which is tamely embedded in S^4.
We also define the notion of branched covering between topological manifolds, which
extends the usual one in the PL category. In this setting, as an interesting consequence of
the above results, we prove that any closed oriented topological 4-manifold is a 4-fold
branched covering of S^4. According to almost-smoothability of 4-manifolds, this
branched cover could be wild at a single point.
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Non-Kahler complex structures on R^4 Title : Non-Kahler complex structures on R^4 Author : Di Scala Antonio J., Kasuya Naohiko, Zuddas Daniele Journal : Geometry & Topology
Non-Kahler complex structures on R^4 NUMBER M15001 AUTHOR Di Scala Antonio J., Kasuya Naohiko, Zuddas Daniele TITLE Non-Kahler complex structures on R^4 ARCHIVE 1501.06097 FILE Non-Kahler-R4.pdf JOURNAL Geometry & Topology ABSTRACT We construct the first examples of non-Kahler complex structures on R^4. These
complex surfaces have some analogies with the complex structures constructed in early
Fifties by Calabi and Eckmann on the products of two odd-dimensional spheres. However,
our construction is quite different from that of Calabi and Eckmann.
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On embeddings of almost complex manifolds in almost complex Euclidean spaces Title : On embeddings of almost complex manifolds in almost complex Euclidean spaces Author : Di Scala Antonio J., Kasuya Naohiko, Zuddas Daniele Journal : Journal of Geometry and Physics 101 (2016) 19-26
On embeddings of almost complex manifolds in almost complex Euclidean spaces NUMBER M14015 AUTHOR Di Scala Antonio J., Kasuya Naohiko, Zuddas Daniele TITLE On embeddings of almost complex manifolds in almost complex Euclidean spaces ARCHIVE 1410.1321 FILE embeddings.pdf JOURNAL Journal of Geometry and Physics 101 (2016) 19-26 ABSTRACT We prove that any compact almost complex manifold (M, J) of real dimension 2m admits
a pseudo-holomorphic embedding in a Euclidean space of dimension 4m + 2, endowed
with a suitable non-standard almost complex structure. Moreover, we give a necessary and
sufficient condition, expressed in terms of the Segre class of (M, J), for the existence of an
embedding or an immersion in an almost complex Euclidean 4m-space. We also discuss
the pseudo-holomorphic embeddings of an almost complex 4-manifold in R^6.
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Universal Lefschetz fibrations and Lefschetz cobordisms Title : Universal Lefschetz fibrations and Lefschetz cobordisms Author : Zuddas, Daniele Journal : Geometry & Topology Monographs 19 (2015) 125-144
Universal Lefschetz fibrations and Lefschetz cobordisms NUMBER M14009 AUTHOR Zuddas, Daniele TITLE Universal Lefschetz fibrations and Lefschetz cobordisms ARCHIVE 1403.2203 FILE universalfib2.pdf JOURNAL Geometry & Topology Monographs 19 (2015) 125-144 ABSTRACT We construct universal Lefschetz fibrations, that are defined in analogy with the classical
universal bundles. We also introduce the cobordism groups of Lefschetz fibrations, and we
see how these groups are quotient of the singular bordism groups via the universal
Lefschetz fibrations.
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Lefschetz fibrations over the disc Title : Lefschetz fibrations over the disc Author : Apostolakis Nikos, Piergallini Riccardo, Zuddas Daniele Journal : Proceedings of the London Mathematical Society 107 (2013) 340-390
Lefschetz fibrations over the disc NUMBER M14007 AUTHOR Apostolakis Nikos, Piergallini Riccardo, Zuddas Daniele TITLE Lefschetz fibrations over the disc ARCHIVE 1104.4536 FILE JOURNAL Proceedings of the London Mathematical Society 107 (2013) 340-390 ABSTRACT We provide a complete set of moves relating any two Lefschetz fibrations over the disc
having as their total space the same four-dimensional 2-handlebody up to 2-equivalence.
As a consequence, we also obtain moves relating diffeomorphic three-dimensional open
books, providing a different approach to an analogous previous result by Harer.
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Universal Lefschetz fibrations over bounded surfaces Title : Universal Lefschetz fibrations over bounded surfaces Author : Zuddas Daniele Journal : Algebraic & Geometric Topology 12 (2012) 1811-1829
Universal Lefschetz fibrations over bounded surfaces NUMBER M14006 AUTHOR Zuddas Daniele TITLE Universal Lefschetz fibrations over bounded surfaces ARCHIVE 1106.3530 FILE Universal1.pdf JOURNAL Algebraic & Geometric Topology 12 (2012) 1811-1829 ABSTRACT In analogy with the vector bundle theory we define universal and strongly universal
Lefschetz fibrations over bounded surfaces. After giving a characterization of these
fibrations we construct very special strongly universal Lefschetz fibrations when the fiber
is the torus or an orientable surface with connected boundary and the base surface is the
disk. As a by-product we also get some immersion results for 4-dimensional 2-
handlebodies.
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Embedding almost-complex manifolds in almost-complex euclidean spaces Title : Embedding almost-complex manifolds in almost-complex euclidean spaces Author : Di Scala Antonio J, Zuddas Daniele Journal : Journal of Geometry and Physics
Embedding almost-complex manifolds in almost-complex euclidean spaces NUMBER M14005 AUTHOR Di Scala Antonio J, Zuddas Daniele TITLE Embedding almost-complex manifolds in almost-complex euclidean spaces ARCHIVE 1005.4619 FILE embedding1.pdf JOURNAL Journal of Geometry and Physics ABSTRACT We show that any compact almost-complex manifold (M, J) of complex dimension m can
be pseudo-holomorphically embedded in R^{6m} equipped with a suitable almost-
complex structure.
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Representing Dehn twists with branched coverings Title : Representing Dehn twists with branched coverings Author : Zuddas Daniele Journal : Int. Math. Res. Notices
Representing Dehn twists with branched coverings NUMBER M14004 AUTHOR Zuddas Daniele TITLE Representing Dehn twists with branched coverings ARCHIVE 0710.0102 FILE dehn.pdf JOURNAL Int. Math. Res. Notices ABSTRACT We show that any homologically nontrivial Dehn twist of a compact surface F with
boundary is the lifting of a half-twist in the braid group B_n, with respect to a suitable
branched covering p : F --> B^2. In particular, we allow the surface to have disconnected
boundary. As a consequence, any allowable Lefschetz fibration on B^2 is a branched
covering of B^2 x B^2.
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A universal ribbon surface in B^4 Title : A universal ribbon surface in B^4 Author : Piergallini Riccardo, Zuddas Daniele Journal : Proc. London Math. Soc.
A universal ribbon surface in B^4 NUMBER M14003 AUTHOR Piergallini Riccardo, Zuddas Daniele TITLE A universal ribbon surface in B^4 ARCHIVE math/0308222 FILE universal_surface.pdf JOURNAL Proc. London Math. Soc. ABSTRACT We construct an orientable ribbon surface F in B^4, which is universal in the following
sense: any compact orientable pl 4-manifold having a handle decomposition with 0-, 1-
and 2-handles can be represented as a cover of B^4 branched over F.
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Braiding non-orientable surfaces in S^4 Title : Braiding non-orientable surfaces in S^4 Author : Piergallini Riccardo, Zuddas Daniele Journal : Atti Sem. Mat. Fis. Univ. Modena
Braiding non-orientable surfaces in S^4 NUMBER M14002 AUTHOR Piergallini Riccardo, Zuddas Daniele TITLE Braiding non-orientable surfaces in S^4 ARCHIVE FILE braiding.pdf JOURNAL Atti Sem. Mat. Fis. Univ. Modena ABSTRACT Closed braided surfaces in S^4 are the two-dimensional analogous of closed braids in S^3.
They are useful in studying smooth closed orientable surfaces in S^4, since any such a
surface is isotopic to a braided one. We show that the non-orientable version of this result
does not hold, that is smooth closed non-orientable surfaces cannot be braided. In fact, any
reasonable definition of non-orientable braided surfaces leads to very strong restrictions in
terms of selfintersection and Euler characteristic.
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Some remarks on Bergmann metrics Title : Some remarks on Bergmann metrics Author : Loi Andrea, Zuddas Daniele Journal : Riv. Mat. Univ. Parma
Some remarks on Bergmann metrics NUMBER M14001 AUTHOR Loi Andrea, Zuddas Daniele TITLE Some remarks on Bergmann metrics ARCHIVE FILE bergmann.pdf JOURNAL Riv. Mat. Univ. Parma ABSTRACT In this paper we study the set of self-Bergmann metrics on the Riemann sphere endowed
with the Fubini-Study metric and we extend a theorem of Tian to the case of the punctured
plane endowed with a natural flat metric.
- 진성태
- Research Fellow
- Combinatoric, Combinatorial Matrix Theory
- Office : 1222
- Tel : 2522 | Fax : 3820
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- 채기성
- Research Fellow
- Theoretical and Computational Materials Science
- Office : 1524
- Tel : 3897 | Fax : 3870
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- 최우철
- Research Fellow
- Analysis and Numerics of PDEs
- Office : 1436
- Tel : 2541 | Fax : 3786
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- 캉, 자오펑
- Research Fellow
- Dark Matter
- Office : 1433
- Tel : 3852 | Fax : 3870
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ADMonium: Asymmetric Dark Matter Bound State Title : ADMonium: Asymmetric Dark Matter Bound State Author : Xiao-Jun Bi, Zhaofeng Kang, P. Ko, Jinmian Li, Tianjun Li Journal :
ADMonium: Asymmetric Dark Matter Bound State NUMBER P16027 AUTHOR Xiao-Jun Bi, Zhaofeng Kang, P. Ko, Jinmian Li, Tianjun Li TITLE ADMonium: Asymmetric Dark Matter Bound State ARCHIVE arXiv:1602.08816 FILE JOURNAL ABSTRACT
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New Physics Opportunities in the Boosted Di-Higgs plus missing ET Signature Title : New Physics Opportunities in the Boosted Di-Higgs plus missing ET Signature Author : Zhaofeng Kang, P. Ko, Jinmian Li Journal :
New Physics Opportunities in the Boosted Di-Higgs plus missing ET Signature NUMBER P15028 AUTHOR Zhaofeng Kang, P. Ko, Jinmian Li TITLE New Physics Opportunities in the Boosted Di-Higgs plus missing ET Signature ARCHIVE arXiv:1504.04128 FILE JOURNAL ABSTRACT
- 크라, 알렉산더
- Research Fellow
- Computational Biophysics
- Office : 7314
- Tel : 3797 | Fax :
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- 토네가와, 모토나리
- Research Fellow
- Office : 1433
- Tel : 3754 | Fax :
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- 플로레스-카날레스, 호세
- Research Fellow
- Protein Folding
- Office : 7315
- Tel : 2643 | Fax : 3820
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- 하준수
- Research Fellow
- Number Theory
- Office : 1408
- Tel : 3733 | Fax : 3786
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- 한재호
- CMC Research Fellow
- Number Theory
- Office : 8301
- Tel : 2646 | Fax :
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- 함세헌
- Research Fellow
- Harmonic Analysis
- Office : 1530
- Tel : 3736 | Fax : 3786
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- 현종윤
- Research Fellow
- Combinatorics, Algebraic and Combinatorial Coding Theory
- Office : 1327
- Tel : 3719 | Fax : 3870
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- 홍규식
- Research Fellow
- Algebraic Geometry
- Office : 1515
- Tel : 3861 | Fax : 3786
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- 홍승환
- Research Fellow
- Protein Folding
- Office : 7315
- Tel : 2642 | Fax :
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- 황원석
- Research Fellow
- Computational Biophysics
- Office : 7312
- Tel : 3863 | Fax : 3820
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Quantifying the Heat Dissipation from a Molecular Motors Transport Properties in Nonequilibrium Steady States Title : Quantifying the Heat Dissipation from a Molecular Motors Transport Properties in Nonequilibrium Steady States Author : Wonseok Hwang, Changbong Hyeon Journal : The Journal of Physical Chemistry Letters
Quantifying the Heat Dissipation from a Molecular Motors Transport Properties in Nonequilibrium Steady States NUMBER C17002 AUTHOR Wonseok Hwang, Changbong Hyeon TITLE Quantifying the Heat Dissipation from a Molecular Motors Transport Properties in Nonequilibrium Steady States ARCHIVE arXiv:1612.05747v2 FILE JOURNAL The Journal of Physical Chemistry Letters ABSTRACT Theoretical analysis, which maps single molecule time trajectories of a molecular motor onto unicyclic
Markov processes, allows us to evaluate the heat dissipated from the motor and to elucidate its
dependence on the mean velocity and diffusivity. Unlike passive Brownian particles in equilibrium, the
velocity and diffusion constant of molecular motors are closely inter-related to each other. In particular,
our study makes it clear that the increase of diffusivity with the heat production is a natural outcome
of active particles, which is reminiscent of the recent experimental premise that the diffusion of an
exothermic enzyme is enhanced by the heat released from its own catalytic turnover. Compared with
freely diffusing exothermic enzymes, kinesin-1 whose dynamics is confined on one-dimensional tracks is
highly efficient in transforming conformational fluctuations into a locally directed motion, thus
displaying a significantly higher enhancement in diffusivity with its turnover rate. Putting molecular
motors and freely diffusing enzymes on an equal footing, our study offers thermodynamic basis to
understand the heat enhanced self-diffusion of exothermic enzymes.
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Decoding Single Molecule Time Traces with Dynamic Disorder Title : Decoding Single Molecule Time Traces with Dynamic Disorder Author : Wonseok Hwang, Il-Buem Lee, Seok-Cheol Hong, Changbong Hyeon Journal : Plos Computational Biology
Decoding Single Molecule Time Traces with Dynamic Disorder NUMBER C17001 AUTHOR Wonseok Hwang, Il-Buem Lee, Seok-Cheol Hong, Changbong Hyeon TITLE Decoding Single Molecule Time Traces with Dynamic Disorder ARCHIVE arXiv:1612.04514 FILE JOURNAL Plos Computational Biology ABSTRACT Single molecule time trajectories of biomolecules provide glimpses into complex folding landscapes that
are difficult to visualize using conventional ensemble measurements. Recent experiments and theoretical
analyses have highlighted dynamic disorder in certain classes of biomolecules, whose dynamic pattern of
conformational transitions is affected by slower transition dynamics of internal state hidden in a low
dimensional projection. A systematic means to analyze such data is, however, currently not well
developed. Here we report a new algorithm - Variational Bayes-double chain Markov model (VB-
DCMM) - to analyze single molecule time trajectories that display dynamic disorder. The proposed
analysis employing VB-DCMM allows us to detect the presence of dynamic disorder, if any, in each
trajectory, identify the number of internal states, and estimate transition rates between the internal
states as well as the rates of conformational transition within each internal state. Applying VB-DCMM
algorithm to single molecule FRET data of H-DNA in 100 mM-Na+ solution, followed by data
clustering, we show that at least 6 kinetic paths linking 4 distinct internal states are required to
correctly interpret the duplex-triplex transitions of H-DNA.
- 황치웅
- Research Fellow
- String theory
- Office : 1412
- Tel : 2503 | Fax :
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Twisted Partition Functions and H-Saddles Title : Twisted Partition Functions and H-Saddles Author : 이필진 Journal :
Twisted Partition Functions and H-Saddles NUMBER P17029 AUTHOR 이필진 TITLE Twisted Partition Functions and H-Saddles ARCHIVE FILE JOURNAL ABSTRACT
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Fundamental Vortices, Wall-Crossing, and Particle-Vortex Duality Title : Fundamental Vortices, Wall-Crossing, and Particle-Vortex Duality Author : Chiung Hwang, Piljin Yi, Yutaka Yoshida Journal :
Fundamental Vortices, Wall-Crossing, and Particle-Vortex Duality NUMBER P17001 AUTHOR Chiung Hwang, Piljin Yi, Yutaka Yoshida TITLE Fundamental Vortices, Wall-Crossing, and Particle-Vortex Duality ARCHIVE 1703.00213 FILE JOURNAL ABSTRACT
- 황택규
- Research Fellow
- Symplectic geometry
- Office : 1513
- Tel : 2513 | Fax : 3786
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