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Kai Sun |
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Postdoctoral Fellow |
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E-mail: kaisun@umd.edu |
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Phone: 301-405-3673 |
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Office: 2334 John S. Toll Physics Building |
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Postdoctoral Fellow Joint Quantum Institute and Condensed Matter Theory Center University of Maryland at College Park
Mailing Address: Condensed Matter Theory Center |
Research Interests |
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I am a condensed matter theorist. My studies utilize theoretical tools and various mathematical techniques to understand exotic phenomena in condensed matter systems. I have a wide-range of interests including: topological states of matter, strongly correlated systems, quantum and classical criticality, many-body effects and exotic phases in ultra-cold atomic gases, exotic elastic systems. My current studies focus on: 1. Interaction effects in topological states of matter 2. Quantum liquid crystal phases in strongly correlated systems 3. Exotic states of matter in quantum and classical systems |
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Selected Publications and Presentations |
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Kai Sun, Anton Souslov, Xiaoming Mao and T. C. Lubensky, Isostaticity, auxetic response, surface modes, and conformal invariance in twisted kagome lattices. Preprints (2011). [arXiv:1112.1109v1]
Kai Sun, W. Vincent Liu, Andreas Hemmerich and S. Das Sarma, Topological semimetal in a fermionic optical lattice, Nature Physics 8, 67–70 (2012). [arXiv:1011.4301v1]
Kai Sun, Zhengcheng Gu, Hosho Katsura and S. Das Sarma, Nearly-flat bands with nontrivial topology, Phys. Rev. Lett. 106, 236803 (2011). [arXiv:1012.5864v2] See accompanying Viewpoint by R. Roy and S. L. Sondhi, Physics 4, 46 (2011).
Christopher N. Varney, Kai Sun, Victor Galitski and Marcos Rigol, Kaleidoscope of Exotic Quantum Phases in a Frustrated XY Model, Phys. Rev. Lett. 107, 077201 (2011). [arXiv:1103.4123v2] See accompanying Viewpoint by Tameem Albash and Stephan Haas, Physics 4, 62 (2011)
Maxim Dzero, Kai Sun, Victor Galitski and Piers Coleman, Topological Kondo Insulators, Physical Review Letters 104, 106408 (2010). [arXiv:0912.3750v1]
Kai Sun, Hong Yao, Eduardo Fradkin and Steven A. Kivelson, Topological insulators and nematic phases from spontaneous symmetry breaking in 2D Fermi systems with a quadratic band crossing, Physical Review Letters 103, 046811 (2009). [arXiv:0905.0907v1]
Talk at Kavli Institute for Theoretical Physics, University of California, Santa Barbara, “Zero-energy Edge Modes, Emergent Conformal Symmetry, and Elastic Holography.” Video: http://online.itp.ucsb.edu/online/topomat11/sun/
APS March Meeting invited talk, “Topological insulators and nematic phases from spontaneous symmetry breaking in 2D fermi systems with a quadratic band crossing”.
Invited talk in KITP conference: Frontiers of Ultracold Atoms and Molecules, Kavli Institute for Theoretical Physics, University of California, Santa Barbara, “Topological state of matter from orbital degrees of freedom”. Video: http://online.kitp.ucsb.edu/online/boptilatt_c10/sun/
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