Non-Hermitian fractional quantum Hall states with 1/3 filling

ORAL

Abstract

We elucidate the emergence of non-Hermitian fractional quantum Hall states (nHFQH) with 1/3 filling for cold atoms with two-body loss. We characterize the nHFQH states with the topological degeneracy under the periodic boundary condition and the total Chern number Ctot=1 for the ground state triplet. Furthermore, we point out that nHFQH states emerge even when the interaction is purely dissipative.

*This work is partly supported by JSPS KAKENHI Grants No.JP16K13845, No.JP17H06138, and No.JP18H05842. A part of numerical calculations were performed on the supercomputer at the ISSP in the University of Tokyo.

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Presenters

  • Tsuneya Yoshida

    • Univ of Tsukuba
    • Physical Society of Japan

Authors

  • Tsuneya Yoshida

    • Univ of Tsukuba
    • Physical Society of Japan

  • Koji Kudo

    • Univ of Tsukuba

  • Yasuhiro Hatsugai

    • Univ of Tsukuba
    • Department of Physics, University of Tsukuba