Zobrazeno 1 - 10
of 923
pro vyhledávání: '"Shen, Shun"'
Autor:
Fu, Bo, Shen, Shun-Qing
The half-quantized Hall phase represents a unique metallic or semi-metallic state of matter characterized by a fractional quantum Hall conductance, precisely half of an integer $\nu$ multiple of $e^{2}/h$. Here we demonstrate the existence of a novel
Externí odkaz:
http://arxiv.org/abs/2409.15655
The parity anomalous semimetal is a topological state of matter characterized by its semi-metallic nature and a quantum Hall conductance of one-half $e^{2}/h$ ($e$ is the elementary charge and $h$ is the Planck constant). Here we investigate the topo
Externí odkaz:
http://arxiv.org/abs/2408.11270
We develop a Dirac fermion theory for topological phases in magnetic topological insulator films. The theory is based on exact solutions of the energies and the wave functions for an effective model of the three-dimensional topological insulator (TI)
Externí odkaz:
http://arxiv.org/abs/2405.09121
We report the discovery of the half-quantized mirror Hall effect, a novel quantum-anomaly induced by mirror symmetry in a strong topological insulator (TI) film. These films are known to host a pair of gapless Dirac cones associated with surface elec
Externí odkaz:
http://arxiv.org/abs/2402.02654
Publikováno v:
Phys. Rev. 108, L241407 (2023)
The quantum anomalous Hall effect (QAHE) is a topological state of matter with a quantized Hall resistance. It has been observed in some two-dimensional insulating materials such as magnetic topological insulator films and twisted bilayer graphene. T
Externí odkaz:
http://arxiv.org/abs/2308.05963
Publikováno v:
Phys. Rev. B 109, 075113 (2024)
The pursuit of understanding parity anomaly in condensed matter systems has led to significant advancements in both theoretical and experimental research in recent years. In this study, we explore the parity anomaly of massless Dirac fermions in a se
Externí odkaz:
http://arxiv.org/abs/2308.04718
Publikováno v:
Phys. Rev. B 108, 045141(2023)
The anomalous Hall effect has considerable impact on the progress of condensed matter physics and occurs in systems with time-reversal symmetry breaking. Here we theoretically investigate the anomalous Hall effect in nonmagnetic transition-metal pent
Externí odkaz:
http://arxiv.org/abs/2307.09708
Publikováno v:
Phys. Rev. Research 5, L032024(2023)
Discrete time crystal is a class of nonequilibrium quantum systems exhibiting subharmonic responses to external periodic driving. Here we propose a class of discrete time crystals enforced by nonsymmorphic dynamical symmetry. We start with a system w
Externí odkaz:
http://arxiv.org/abs/2305.17322
Autor:
Chen, Rui, Shen, Shun-Qing
Publikováno v:
Sci. China Phys. Mech. Astron. 67, 267011 (2024)
In topological insulators, massive surface bands resulting from local symmetry breaking are believed to exhibit a half-quantized Hall conductance. However, such scenarios are obviously inconsistent with the Thouless-Kohmoto-Nightingale-Nijs theorem,
Externí odkaz:
http://arxiv.org/abs/2304.04229