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Kwon Park works on condensed matter physics particularly focusing on strongly correlated electron systems. His main research areas include the fractional quantum Hall effect, high temperature superconductivity, and quantum magnetism. In the fractional quantum Hall effect, he has applied the composite fermion theory to explain various collective properties of the fractional quantum Hall systems. His recent research effort is devoted in the intriguing state of the even-denominator fractional quantum Hall effect. In high temperature superconductivity, his research concentrates on the intimate connection between antiferromagnetism and superconductivity. Technically speaking, he has discovered that the t-J and the Gutzwiller-projected BCS model are intimately connected, as shown by the unity ground state wave function overlap at half filling and generally high overlaps at moderate doping. Kwon Park is investigating if this connection holds an important clue to the ultimate understanding of high temperature superconductivity. In quantum magnetism, he studies various quantum phases and transitions in geometrically frustrated quantum magnets.

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AUTHOR | Balram, Ajit C.; Mukherjee, Sutirtha; Park, Kwon; Barkeshli, Maissam; Rudner, Mark S.; Jain, J. K. |
TITLE | Fractional Quantum Hall Effect at nu=2+6/13: The Parton Paradigm for the Second Landau Level |
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JOURNAL | PHYSICAL REVIEW LETTERS, 121(18), 186601, 2018 |
ABSTRACT | The unexpected appearance of a fractional quantum Hall effect (FQHE) plateau at nu = 2 + 6/13 [A. Kumar et al., Phys. Rev. Lett. 105, 246808 (2010)] offers a clue into the physical mechanism of the FQHE in the second Landau level (SLL). Here we propose a (3) over bar(2) over bar 111 parton wave function, which is topologically distinct from the 6/13 state in the lowest Landau level. We demonstrate the (3) over bar(2) over bar 111 state to be a good candidate for the nu = 2 + 6/13 FQHE, and make predictions for experimentally measurable properties that can reveal the nature of this state. Furthermore, we propose that the (n) over bar(2) over bar 111 family of parton states naturally describes many observed SLL FQHE plateaus.
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AUTHOR | Park, Kwon |
TITLE | A Passage to Topological Matter: Colloquium |
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JOURNAL | JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 73(6), 817-832, 2018 |
ABSTRACT | Topological matter has become one of the most important subjects in contemporary condensed matter physics. Here, I would like to provide a pedagogical review explaining some of the main ideas, which were pivotal in establishing topological matter as such an important subject. Specifically, I explain how the integer quantum Hall state played the role as a prototype for topological matter, eventually leading to the concept of topological insulator. The topological nature of the integer quantum Hall state is best represented by the Thouless-Kohmoto-Nightingale-den Nijs, or so-called TKNN formula, which connects between the Berry phase and the Hall conductivity. The topological non-triviality of topological insulator stems from the existence of a Dirac monopole in an appropriate, but often hidden Hamiltonian parameter space. Interestingly, having the identical Dirac monopole structure, the Hamiltonian describing the Rabi oscillation bears the essence of topological insulator. The concept of topological matter has expanded to include topological semimetals such as Weyl and Dirac semimetals. A final frontier in the research of topological matter is the interaction-induced topological phases of matter, namely, the fractional Chern and topological insulators. The existence of the fractional Chern and topological insulators has been proposed theoretically by drawing an analogy from the fractional quantum Hall states. The gist of this proposal is explained along with some of its issues. I conclude this review by discussing some of the future directions in the research of topological matter.
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NUMBER | |
AUTHOR | Jeong, Jae-Seung; Lu, Hantao; Lee, Ki Hoon; Hashimoto, Kenji; Chung, Suk Bum; Park, Kwon |
TITLE | Competing states for the fractional quantum Hall effect in the 1/3-filled second Landau level |
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JOURNAL | PHYSICAL REVIEW B v.96(12), 125148. 2017 |
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NUMBER | P16064 |
AUTHOR | Kim, Kun Woo; Lee, Woo-Ram; Kim, Yong Baek; Park, Kwon |
TITLE | Surface to bulk Fermi arcs via Weyl nodes as topological defects |
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JOURNAL | NATURE COMMUNICATIONS v.7, 13489. 2016. |
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AUTHOR | Lee, WR; Park, K |
TITLE | Direct manifestation of topological order in the winding number of the Wannier-Stark ladder |
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JOURNAL | PHYSICAL REVIEW B, v.92 no.19 (2015) 195144 |
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AUTHOR | Jeong, JS; Park, K |
TITLE | Bilayer mapping of the paired quantum Hall state: Instability toward anisotropic pairing |
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JOURNAL | PHYSICAL REVIEW B, v.91 no.19 (2015) 195119 |
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AUTHOR | Rhim, JW; Jain, JK; Park, K |
TITLE | Analytical theory of strongly correlated Wigner crystals in the lowest Landau level |
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JOURNAL | PHYSICAL REVIEW B, v.92 no.12 (2015) 121103 |
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AUTHOR | Lee, WR; Park, K |
TITLE | Dielectric breakdown via emergent nonequilibrium steady states of the electric-field-driven Mott insulator |
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JOURNAL | PHYSICAL REVIEW B, v.89 no.20 (2014) 205126 |
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AUTHOR | Archer, AC; Park, K; Jain, JK |
TITLE | Competing Crystal Phases in the Lowest Landau Level |
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JOURNAL | PHYSICAL REVIEW LETTERS, v.111 no.14 (2013) 146804 |
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AUTHOR | Rhim, JW; Park, K |
TITLE | Self-similar occurrence of massless Dirac particles in graphene under a magnetic field |
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JOURNAL | PHYSICAL REVIEW B, v.86 no.23 (2012) 235411 |
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AUTHOR | Hwang, K; Park, K; Kim, YB |
TITLE | Influence of Dzyaloshinskii-Moriya interactions on magnetic structure of a spin-1/2 deformed kagome lattice antiferromagnet |
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JOURNAL | PHYSICAL REVIEW B, v.86 no.21 (2012) 214407 |
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AUTHOR | Go, A; Witczak-Krempa, W; Jeon, GS; Park, K; Kim, YB |
TITLE | Correlation Effects on 3D Topological Phases: From Bulk to Boundary |
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JOURNAL | PHYSICAL REVIEW LETTERS, v.109 no.6 (2012) 066401 |
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NUMBER | |
AUTHOR | Kyusung Hwang, Yong Baek Kim, Jaejun Yu, and K. Park |
TITLE | Spin cluster operator theory for the Kagome lattice antiferromagnet |
ARCHIVE | arXiv:1108.5257 |
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JOURNAL | 2011 |
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NUMBER | |
AUTHOR | Ji-Woo Lee, Chenglong Jia, and K. Park |
TITLE | Intimate connection between the t-J and the Gutzwiller-projected Bardeen-Cooper-Schrieffer model |
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JOURNAL | Preprint (2011) |
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AUTHOR | Hantao Lu, S. Das Sarma, and K. Park |
TITLE | Superconducting order parameter for the evendenominator fractional quantum Hall effect |
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JOURNAL | Phys. Rev. B (Rapid Communication), in press (2010) |
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AUTHOR | K. Park |
TITLE | Dynamical mean field theory of the repulsive BCS+U model |
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JOURNAL | New Journal of Physics 11, 073027 (2009) |
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AUTHOR | Michael R. Peterson, K. Park, and S. Das Sarma |
TITLE | Spontaneous particle-hole symmetry breaking in the v = 5=2 fractional quantum Hall effect |
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JOURNAL | Phys. Rev. Lett. 101, 156803 (2008) |
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NUMBER | |
AUTHOR | Bohm-Jung Yang, Yong Baek Kim, Jaejun Yu, and K. Park |
TITLE | Spin triplet excitations for a valence bond solid on the Kagome lattice |
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JOURNAL | Phys. Rev. B 77, 224424 (2008) |
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NUMBER | |
AUTHOR | Bohm-Jung Yang, Yong Baek Kim, Jaejun Yu, and K. Park |
TITLE | Doped Valence-bond Solid and Superconductivity on the Shastry-Sutherland Lattice |
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JOURNAL | Phys. Rev. B 77, 104507 (2008) |
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AUTHOR | K. Park |
TITLE | Dynamical Mean Field Theory of the Gutzwiller-projected BCS Hamiltonian: Phase Fluctuations and the Pseudogap |
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JOURNAL | cond-mat/0701588 (2007) |
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AUTHOR | K. Park and S. Das Sarma |
TITLE | Coherent tunneling in exciton condensates of bilayer quantum Hall systems |
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JOURNAL | Phys. Rev. B 74, 035338 (2006) |
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AUTHOR | K. Park |
TITLE | Quantum antiferromagnetism and high Tc superconductivity: a close connection between the t-J model and the projected BCS Hamiltonian |
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JOURNAL | Phys. Rev. B 72, 245116 (2005) |
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AUTHOR | K. Park |
TITLE | Theoretical Evidence for Equivalence between the Ground States of the Strong Coupling BCS Hamiltonian and the Antiferromagnetic Heisenberg Model |
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JOURNAL | Phys. Rev. Lett. 95, 027001 (2005) |
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AUTHOR | V. W. Scarola, K. Park, and S. Das Sarma |
TITLE | Pseudo-spin quantum computation in semiconductor nanostructures |
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JOURNAL | New Journal of Physics 7, 177 (2005) |
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NUMBER | |
AUTHOR | J. K. Jain, K. Park, M. R. Peterson, and V. W. Scarola |
TITLE | Composite fermion theory of excitations in the fractional quantum Hall effect |
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JOURNAL | Solid State Comm. 135, 602 (2005) |
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AUTHOR | K. Park |
TITLE | Theory of Tunneling in the Exciton Condensate of Bilayer Quantum Hall Systems |
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JOURNAL | cond-mat/0407535 (2004) |
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NUMBER | |
AUTHOR | V. W. Scarola, K. Park, and S. Das Sarma |
TITLE | Chirality in Quantum Computation with Spin Cluster Qubits |
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JOURNAL | Phys. Rev. Lett. 93, 120503 (2004) |
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AUTHOR | K. Park |
TITLE | Radiation-Induced Zero-Resistance State at Low Magnetic Fields and near Half Filling of the Lowest Landau Level |
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JOURNAL | Phys. Rev. B 69, 201301(R) (2004) |
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AUTHOR | K. Park |
TITLE | Spontaneous Pseudospin Spiral Order in the Bilayer Quantum Hall Systems |
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JOURNAL | Phys. Rev. B 69, 045319, (2004) |
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NUMBER | |
AUTHOR | V. W. Scarola, K. Park and S. Das Sarma |
TITLE | Pseudospin Quantum Computation in Semiconductor Nanostructure |
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JOURNAL | Phys. Rev. Lett. 91, 167903 (2003) |
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AUTHOR | K. Park, V. W. Scarola, and S. Das Sarma |
TITLE | Even-odd effect in spontaneously coherent quantum Hall droplets |
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JOURNAL | Phys. Rev. Lett. 91, 026804 (2003) |
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AUTHOR | K. Park |
TITLE | Kondo effect of non-magnetic impurities and the co-existing charge order in the cuprate superconductors |
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JOURNAL | Phys. Rev. B 67, 094513 (2003) |
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AUTHOR | Kwon Park and Subir Sachdev |
TITLE | Bond and Neel order and Fractionalization in Ground States of Easy-plane Antiferromagnets in Two Dimensions |
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JOURNAL | Phys. Rev. B 65, 220405(R) (2002) |
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NUMBER | |
AUTHOR | Subir Sachdev and Kwon Park |
TITLE | Ground States of Quantum Antiferromagnets in Two Dimensions |
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JOURNAL | Annals of Physics, 298, 58 (2002) |
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AUTHOR | K. Park |
TITLE | Charged Excitons of Composite Fermions in the Fractional Quantum Hall Effects |
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JOURNAL | Solid State Communication, 121 (1), 19-23 (2002) |
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NUMBER | |
AUTHOR | Kwon Park and Subir Sachdev |
TITLE | Bond Operator Theory of Doped Antiferromagnets: from Mott Insulators with Bond-centered Charge Order, to Superconductors with Nodal Fermions |
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JOURNAL | Phys. Rev. B 64, 184510 (2001) |
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AUTHOR | J.K. Jain, R.K. Kamilla, K. Park, and V.W. Scarola |
TITLE | Interacting Composite Fermions |
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JOURNAL | Solid State Communication, 117 (3), 117-122 (2001) |
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AUTHOR | K. Park and J.K. Jain |
TITLE | The Spin Physics of Composite Fermions |
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JOURNAL | Solid State Communication, 119, 291-299 (2001) |
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AUTHOR | K. Park and J.K. Jain |
TITLE | Mixed States of Composite Fermions Carrying Two and Four Vortices |
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JOURNAL | Phys. Rev. B 62, R13274 (2000) |
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NUMBER | |
AUTHOR | V.W. Scarola, K. Park and J.K. Jain |
TITLE | The Excitonic Collapse of Higher Landau Level Fractional Quantum Hall Effect |
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JOURNAL | Phys. Rev. B 62, R16259 (2000) |
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NUMBER | |
AUTHOR | T. Sbeouelji, K. Park and J.K. Jain and N. Meskini |
TITLE | Theoretical Study of the Stability of the Fractional Quantum Hall E?ect in Higher Landau Levels |
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JOURNAL | Phys. Rev. B 62, R4802 (2000) |
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NUMBER | |
AUTHOR | V.W. Scarola, K. Park and J.K. Jain |
TITLE | Cooper Instability of Composite Fermions |
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JOURNAL | Nature 406, 863 (2000) |
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AUTHOR | K. Park and J.K. Jain |
TITLE | Two-roton Bound State in the Fractional Quantum Hall Effect |
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JOURNAL | Phys. Rev. Lett. 84, 5576 (2000) |
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AUTHOR | K. Park and J.K. Jain |
TITLE | Roton Instability of Spin Wave Excitation in the Fully Polarized Quantum Hall State and Phase Diagram at v = 2 |
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JOURNAL | Journal of Physics: Condensed Matter, 12, 3787 (2000) |
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NUMBER | |
AUTHOR | V.W. Scarola, K. Park and J.K. Jain |
TITLE | Rotons of Composite Fermions: Comparison between Theory and Experiment |
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JOURNAL | Phys. Rev. B 61, 13064 (2000) |
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AUTHOR | K. Park and J.K. Jain |
TITLE | Girvin-MacDonald-Platzman Collective Mode at General Filling Factors: Magneto-Roton Minimum at Half-Filled Landau Level |
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JOURNAL | Solid State Communication, 115 (7), 353-357 (2000) |
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NUMBER | |
AUTHOR | Xiomin Zu, K. Park and J.K. Jain |
TITLE | Masses of Composite Fermions Carrying Two and Four Flux Quanta: Di?erences and Similarities |
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JOURNAL | Phys. Rev. B 61, R7850 (2000) |
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AUTHOR | K. Park and J.K. Jain |
TITLE | Spontaneous Magnetization of Composite Fermions |
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JOURNAL | Phys. Rev. Lett. 83, 5543 (1999) |
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AUTHOR | K. Park, N. Meskini, and J.K. Jain |
TITLE | Activation Gaps for the Fractional Quantum Hall Effect: Realistic Treatment of Transverse Thickness |
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JOURNAL | Journal of Physics: Condensed Matter 11, 7283 (1999) |
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NUMBER | |
AUTHOR | Ganpathy Murthy, K. Park, R. Shankar and J.K. Jain |
TITLE | Scaling Relations for Gaps in Fractional Quantum Hall States |
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JOURNAL | Phys. Rev. B 58, 15363 (1998) |
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AUTHOR | K. Park and J.K. Jain |
TITLE | Activation Gaps and Mass Enhancement of Composite Fermions |
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JOURNAL | Phys. Rev. Lett. 81, 4200 (1998) |
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AUTHOR | K. Park, V. Melik-Alaverdian, N.E. Bonesteel, and J.K. Jain |
TITLE | Possibility of p-wave Pairing of Composite Fermion at v = 1=2 |
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JOURNAL | Phys. Rev. B 58, R10167 (1998) |
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AUTHOR | K. Park and J.K. Jain |
TITLE | Phase Diagram of the Spin Polarization of Composite Fermions and a New Effective Mass |
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JOURNAL | Phys. Rev. Lett. 80, 4237 (1998) |
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- Oct. 2008 - Present : Professor, Korea Institute for Advanced Study
- Sep. 2005 - Sep. 2008 : Assistant Professor, Korea Institute for Advanced Study
- Sep. 2002 - Aug. 2005 : Postdoctoral Associate, University of Maryland at College Park
- Sep. 2000 - Aug. 2002 : Postdoctoral Associate, Yale University
- Aug. 1998 - Aug. 2000 : Research Assistant, Pennsylvania State University
- Jul. 1997 - Jul. 1998 : Research Assistant, State University of New York at Stony Brook
- Jul. 1997 - Jul. 1998 : Research Assistant, State University of New York at Stony Brook
- Jan. 1997 - Jun. 1997 :Research Assistant, Massachusetts Institute of Technology
- Jan. 1997 - Aug. 2000 : Ph. D., State University of New York at Stony Brook
- Aug. 1995 - Dec. 1996 : M. A., State University of New York at Stony Brook
- Mar. 1991 - Jul. 1995 : B. S., Seoul National University
- Office:1312 / TEL) 82-2-958-3739 / FAX) 82-2-958-3870
- School of School of Physics, Korea Institute for Advanced Study
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