Anomalous and Spin Hall Insulator in A Fermionic Cold Atom Optical Lattice

ORAL

Abstract

We construct a band insulator in a two dimensional fermionic cold atom optical lattice. The insulator has quantized anomalous Hall conductance and non-vanishing spin Hall coefficient. Although the spin Hall coefficient in the insulator is not quantized in general, it is extremely robust against disorder.

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Authors

  • Chuanwei Zhang

    • Department of Physics and Astronomy, Washington State University, Pullman, WA 99163

  • Junren Shi

    • Institute of Physics, Chinese Academy of Science, Beijing, China

  • Qian Niu

    • Department of Physics, University of Texas, Austin, Texas, 78712