954 citations · 7.3k across the 85 of their papers we have counts for
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Probe knots and Hopf insulators with ultracold atoms
Dong-Ling Deng, Sheng-Tao Wang, Kai Sun +1
Knots and links are fascinating and intricate topological objects. Their influence spans from DNA and molecular chemistry to vortices in superfluid helium, defects in liquid crysta…
Reduction of the low-temperature bulk gap in samarium hexaboride under high magnetic fields
S. Wolgast, Y. S. Eo, K. Sun +5
SmB exhibits a small (15-20 meV) bandgap at low temperatures due to hybridized and electrons, a tiny (3 meV) transport activation energy above 4 K, and surfac…
Adiabatic continuity, wavefunction overlap and topological phase transitions
Jiahua Gu, Kai Sun
In this article, we study the relation between wavefunction overlap and adiabatic continuity in gapped quantum systems. We show that for two band insulators, a scalar function can…
Topological phase transitions with SO(4) symmetry in (2+1)d interacting Dirac fermions
Xiao Yan Xu, K. S. D. Beach, Kai Sun +2
Interaction-driven topological phase transitions in Dirac semimetals are investigated by means of large-scale quantum Monte Carlo (QMC) simulations. The interaction among Dirac fer…
Consistency of Photoemission and Quantum Oscillations for Surface States of SmB6
J. D. Denlinger, Sooyoung Jang, G. Li +11
The mixed valent compound SmB6 is of high current interest as the first candidate example of topologically protected surface states in a strongly correlated insulator and also as a…