Discrete time crystal in an open optomechanical system

• URL: http://arxiv.org/abs/2308.08196v1
• Date: Wed, 16 Aug 2023 07:51:08 GMT
• Title: Discrete time crystal in an open optomechanical system
• Authors: Dongni Chen, Zhengyang Peng, Jiahui Li, Stefano Chesi, and Yingdan Wang
• Abstract summary: We study the occurrence of such dynamical phase in a driven-dissipative optomechanical system with two membranes in the middle. We find that, under certian conditions, the system can be mapped to an open Dicke model and realizes a superradianttype phase transition.
• Score: 0.8516239965790143
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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 certian conditions, the system can be mapped to an open Dicke model and realizes a superradianttype 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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