• Open Access

Discrete time crystal in an open optomechanical system

Dongni Chen, Zhenyang Peng, Jiahui Li, Stefano Chesi, and Yingdan Wang
Phys. Rev. Research 6, 013130 – Published 31 January 2024

Abstract

The spontaneous breaking of time translation symmetry in periodically driven Floquet systems can lead to a discrete time crystal. Here we study the occurrence of such dynamical phase in a driven-dissipative optomechanical system with two membranes in the middle. We find that, under certain conditions, the system can be mapped to an open Dicke model and realizes a superradiant-type phase transition. Furthermore, applying a suitable periodically modulated drive, the system dynamics exhibits a robust subharmonic oscillation persistent in the thermodynamic limit.

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  • Received 18 August 2023
  • Accepted 9 January 2024

DOI:https://doi.org/10.1103/PhysRevResearch.6.013130

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Dongni Chen1,2,3, Zhenyang Peng1,2,4, Jiahui Li5,6, Stefano Chesi6,7,*, and Yingdan Wang1,2,†

  • 1Key Laboratory of Frontiers in Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 2School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Department of Physics, Korea University, Seoul 02841, South Korea
  • 4Wilczek Quantum Center, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
  • 5School of Future Technology, Henan University, Zhengzhou 450046, China
  • 6Beijing Computational Science Research Center, Beijing 100193, People's Republic of China
  • 7Department of Physics, Beijing Normal University, Beijing 100875, People's Republic of China

  • *stefano.chesi@csrc.ac.cn
  • yingdan.wang@itp.ac.cn

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Vol. 6, Iss. 1 — January - March 2024

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