Floquet engineered non-Hermitian system in spin-orbit-coupled fermions

ORAL

Abstract

Floquet engineering enables the creation and manipulation of novel topological states, which have already found wide applications in various Hermitian systems. In this study, we aim to combine Floquet engineering with a topological non-Hermitian system based on a two-dimensional dissipative non-Hermitian topological band in ultracold spin-orbit-coupled fermions [1]. By applying a periodic driving signal to the spin-orbit coupling, we establish a highly manipulatable platform for investigating the interplay between Floquet engineering and non-Hermitian physics. This platform facilitates the study of intriguing phenomena, including the Floquet non-Hermitian skin effect.

[1] Entong Zhao, Zhiyuan Wang, Chengdong He, Ting Fung Jeffrey Poon, Ka Kwan Pak, Yu-Jun Liu, Peng Ren, Xiong-Jun Liu and Gyu-Boong Jo, arXiv 2311.07931 (2023)

*Funding support: RGC 16302420,16302821,16306321, 16306922,16302123, C6009-20G, RFS2122-6S04 and N-HKUST636-22.

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Publication: [1] Entong Zhao, Zhiyuan Wang, Chengdong He, Ting Fung Jeffrey Poon, Ka Kwan Pak, Yu-Jun Liu, Peng Ren, Xiong-Jun Liu and Gyu-Boong Jo, arXiv 2311.07931 (2023)

Presenters

  • Yujun LIU

    • The Hong Kong University of Science and Technology (HKUST)
    • The Hong Kong University of Science and

Authors

  • Yujun LIU

    • The Hong Kong University of Science and Technology (HKUST)
    • The Hong Kong University of Science and

  • Entong ZHAO

    • Hong Kong University of Science and Technology(HKUST)

  • Ka Kwan PAK

    • The Hong Kong University of Science and Technology

  • Peng REN

    • The Hong Kong University of Science and Technology (HKUST)

  • Mengbo Guo

    • The Hong Kong University of Science and Technology (HKUST)
    • Hong Kong University of Sci. & Tech.

  • Chengdong HE

    • Hong Kong University of Science and Technology
    • The Hong Kong University of Science and Technology

  • Gyu-boong Jo

    • Hong Kong University of Science and Tech
    • Hong Kong University of Science and Technology
    • The Hong Kong University of Science and Technology