662 citations · 4.1k across the 70 of their papers we have counts for
6 papers · 1 filter
Entanglement, subsystem particle numbers and topology in free fermion systems
Y. F. Zhang, L. Sheng, R. Shen +2
We study the relationship between bipartite entanglement, subsystem particle number and topology in a half-filled free fermion system. It is proposed that the spin-projected partic…
Topologically Protected Extended States in Disordered Quantum Spin-Hall Systems without Time-Reversal Symmetry
Zhong Xu, L. Sheng, D. Y. Xing +2
We demonstrate the existence of robust bulk extended states in the disordered Kane-Mele model with vertical and horizontal Zeeman fields, in the presence of a large Rashba coupling…
Quantum Hall Effect in Thin Films of Three-Dimensional Topological Insulators
Huichao Li, L. Sheng, D. Y. Xing
We show that a thin film of a three-dimensional topological insulator (3DTI) with an exchange field is a realization of the famous Haldane model for quantum Hall effect (QHE) witho…
Thermoelectric and thermal transport in bilayer graphene systems
R. Ma, L. Zhu, L. Sheng +2
We numerically study the disorder effect on the thermoelectric and thermal transport for bilayer graphene under a strong perpendicular magnetic field. In the unbiased case, we find…
Time-reversal-symmetry-broken quantum spin Hall effect
Yunyou Yang, Zhong Xu, L. Sheng +3
Quantum spin Hall (QSH) state of matter is usually considered to be protected by time-reversal (TR) symmetry. We investigate the fate of the QSH effect in the presence of the Rashb…
Fractional quantum Hall effect in the absence of Landau levels
D. N. Sheng, Zheng-Cheng Gu, Kai Sun +1
It has been well-known that topological phenomena with fractional excitations, i.e., the fractional quantum Hall effect (FQHE) \cite{Tsui1982} will emerge when electrons move in La…