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arXiv · 2308.08196

Discrete time crystal in an open optomechanical system

Dongni Chen·Zhengyang Peng·Jiahui Li·Stefano Chesi·Yingdan Wang
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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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Dongni Chen, Zhengyang Peng, Jiahui Li, Stefano Chesi, Yingdan Wang. 2023-08-16. Discrete time crystal in an open optomechanical system. https://doi.org/10.1103/physrevresearch.6.013130

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