174 citations · 2.7k across the 111 of their papers we have counts for
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Chiral topological excitonic insulator in semiconductor quantum wells
Ningning Hao, Ping Zhang, Jian Li +3
We present a scheme to realize the chiral topological excitonic insulator in semiconductor heterostructures which can be experimentally fabricated with a coupled quantum well adjac…
Topological phases and fractional excitations of the exciton condensate in a special class of bilayer systems
Ningning Hao, Ping Zhang, Yupeng Wang
We study the exciton condensate in zero temperature limit in a special class of electron-hole bilayer systems adjacent to insulating ferromagnetic films. With the self-consistent m…
Exciton condensation and fractional charge in a bilayer two-dimension electron gas adjacent to a superconductor film
Ningning Hao, Ping Zhang, Jian Li +2
We study the exciton condensate (EC) in a bilayer two-dimension-electron-gas (2DEG) adjacent to a type-II superconductor thin film with an array of pinned vortex lattices. By apply…
Fractional topological excitations and quantum phase transition in a bilayer 2DEG adjacent to a superconductor film
Ningning Hao, Wei Zhang, Zhigang Wang +2
We study a bilayer two-dimension-electron-gas (2DEG) adjacent to a type-II superconductor thin film with a pinned vortex lattice. We find that with increasing interlayer tunneling,…
Topological edge states and quantum Hall effect in the Haldane model
Ningning Hao, Ping Zhang, Zhigang Wang +2
We study the topological edge states of the Haldane's graphene model with zigzag/armchair lattice edges. The Harper equation for solving the energies of the edge states is derived.…
Properties of A Class of Topological Phase Transition
Zi Cai, Shu Chen, Supeng Kou +1
The properties of a class of topological quantum phase transition (TQPT) are analyzed based on a model proposed by Haldane. We study the effect of finite temperature on this phase…
Possible existence of a band of extended states induced by inter-Landau-band mixing in quantum Hall system
Gang Xiong, Shi-Dong Wang, Qian Niu +4
The mixing of states with {\it opposite chirality} in quantum Hall system is shown to have delocalization effect. It is possible that extended states may form bands because of this…
Do intradot electron-electron interactions induce dephasing?
Zhao-tan Jiang, Qing-feng Sun, X. C. Xie +1
We investigate the degree of coherence of electronic transport through a quantum dot (QD) in the presence of an intradot electron-electron interaction. By using an open multi-termi…
Anomalous Kondo effect of indirectly coupled double quantum dots
Qing-feng Sun, Hong Guo, Yupeng Wang
We report theoretical investigations of indirectly coupled double quantum dots (QD) side connected to an one-dimensional quantum wire. Due to quantum interference controlled by the…
The effect of inter-Landau-band mixing on extended states in quantum Hall system
Gang Xiong, Shi-Dong Wang, Qian Niu +4
The effect of inter-Landau-band mixing on electron localization in an integer quantum Hall system is studied. We find that mixing of localized states with {\it opposite chirality}…
Spin-Dependent Transport Through An Interacting Quantum Dot
Ping Zhang, Qi-Kun Xue, Yu-Peng Wang +1
We study the nonequilibrium spin transport through a quantum dot containing two spin levels coupled to the magnetic electrodes. A formula for the spin-dependent current is obtained…