Open Access

ARTICLE

Quantum dynamics of dissipative Chern insulator

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1 Department of Physics, Jiangsu University, Zhenjiang 212013, People’s Republic of China

* Corresponding Author: Jilian Zhong ()

Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería 2024, 40(2), 1-7. https://doi.org/10.23967/j.rimni.2024.05.008

Received 05 May 2024; Accepted 21 May 2024; Issue published 04 June 2024

Abstract

For open quantum systems, a short-time evolution is usually well described by the effective non-Hermitian Hamiltonians, while long-time dynamics requires the Lindblad master equation,in which the Liouvillian superoperators characterize the time evolution. In this paper, we constructed an open system by adding suitable gain and loss operators to the Chen insulator to investigate the time evolution of quantum states at long times by numerical simulations. Finally, we also propose a topolectrical circuits to realize the dissipative system for experimental observation. It is found that the opening and closing of the Liouvillian gap leads to different damping behaviours of the system and that the presence of non-Hermitian skin effects leads to a phenomenon of chiral damping with sharp wavefronts. Our study deepens the understanding of quantum dynamics of dissipative system.

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Keywords

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