摘要
Non-Hermitian systems have observed numerous novel phenomena and might lead to various applications.Unlike standard quantum physics,the conservation of energy guaranteed by the closed system is broken in the non-Hermitian system,and the energy can be exchanged between the system and the environment.Here we present a scheme for simulating the dissipative phase transition with an open quantum optical system.The competition between the coherent interaction and dissipation leads to the second-order phase transition.Furthermore,the quantum correlation in terms of squeezing is studied around the critical point.Our work may provide a new route to explore the non-Hermitian quantum physics with feasible techniques in experiments.
作者
王虹
秦悦
马晶旭
申恒
胡颖
贾晓军
Hong Wang;Yue Qin;Jingxu Ma;Heng Shen;Ying Hu;Xiaojun Jia(State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Opto-Electronics,Shanxi University,Taiyuan 030006,China;State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Laser Spectroscopy,Shanxi University,Taiyuan 030006,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China)
基金
Project supported by the National Natural Science Foundation of China (Grant Nos. 61925503, 11874038, and 11654002)
the Key Project of the National Key R&D Program of China (Grant Nos. 2016YFA0301402 and 2020YFA0309400)
the Program for the Innovative Talents of Higher Education Institutions of Shanxi
the Program for Sanjin Scholars of Shanxi Province
the Fund for Shanxi “1331 Project” Key Subjects Construction
