中国物理B ›› 2020, Vol. 29 ›› Issue (4): 44201-044201.doi: 10.1088/1674-1056/ab7b55

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Dissipative quantum phase transition in a biased Tavis-Cummings model

Zhen Chen(陈臻), Yueyin Qiu(邱岳寅), Guo-Qiang Zhang(张国强), Jian-Qiang You(游建强)   

  1. 1 Quantum Physics and Quantum Information Division, Beijing Computational Science Research Center, Beijing 100193, China;
    2 Interdisciplinary Center of Quantum Information and Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics and State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China;
    3 Laboratory of Quantum Information, Institute for Quantum Information and Spintronics, School of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • 收稿日期:2020-01-03 修回日期:2020-02-04 出版日期:2020-04-05 发布日期:2020-04-05
  • 通讯作者: Guo-Qiang Zhang, Jian-Qiang You E-mail:zhangguoqiang3@zju.edu.cn;jqyou@zju.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11934010, U1801661, U1930402, and 11847087) and the National Key Research and Development Program of China (Grant No. 2016YFA0301200).

Dissipative quantum phase transition in a biased Tavis-Cummings model

Zhen Chen(陈臻)1,2, Yueyin Qiu(邱岳寅)3, Guo-Qiang Zhang(张国强)2, Jian-Qiang You(游建强)2   

  1. 1 Quantum Physics and Quantum Information Division, Beijing Computational Science Research Center, Beijing 100193, China;
    2 Interdisciplinary Center of Quantum Information and Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics and State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China;
    3 Laboratory of Quantum Information, Institute for Quantum Information and Spintronics, School of Science, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • Received:2020-01-03 Revised:2020-02-04 Online:2020-04-05 Published:2020-04-05
  • Contact: Guo-Qiang Zhang, Jian-Qiang You E-mail:zhangguoqiang3@zju.edu.cn;jqyou@zju.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11934010, U1801661, U1930402, and 11847087) and the National Key Research and Development Program of China (Grant No. 2016YFA0301200).

摘要: We study the dissipative quantum phase transition (QPT) in a biased Tavis-Cummings model consisting of an ensemble of two-level systems (TLSs) interacting with a cavity mode, where the TLSs are pumped by a drive field. In our proposal, we use a dissipative TLS ensemble and an active cavity with effective gain. In the weak drive-field limit, the QPT can occur under the combined actions of the loss and gain of the system. Owing to the active cavity, the QPT behavior can be much differentiated even for a finite strength of the drive field on the TLS ensemble. Also, we propose to implement our scheme based on the dissipative nitrogen-vacancy (NV) centers coupled to an active optical cavity made from the gain-medium-doped silica. Furthermore, we show that the QPT can be measured by probing the transmission spectrum of the cavity embedding the ensemble of the NV centers.

关键词: quantum phase transition, dissipative ensemble of two-level systems, active optical cavity, Tavis-Cummings model

Abstract: We study the dissipative quantum phase transition (QPT) in a biased Tavis-Cummings model consisting of an ensemble of two-level systems (TLSs) interacting with a cavity mode, where the TLSs are pumped by a drive field. In our proposal, we use a dissipative TLS ensemble and an active cavity with effective gain. In the weak drive-field limit, the QPT can occur under the combined actions of the loss and gain of the system. Owing to the active cavity, the QPT behavior can be much differentiated even for a finite strength of the drive field on the TLS ensemble. Also, we propose to implement our scheme based on the dissipative nitrogen-vacancy (NV) centers coupled to an active optical cavity made from the gain-medium-doped silica. Furthermore, we show that the QPT can be measured by probing the transmission spectrum of the cavity embedding the ensemble of the NV centers.

Key words: quantum phase transition, dissipative ensemble of two-level systems, active optical cavity, Tavis-Cummings model

中图分类号:  (Quantum optical phenomena in absorbing, amplifying, dispersive and conducting media; cooperative phenomena in quantum optical systems)

  • 42.50.Nn
42.50.-p (Quantum optics) 42.50.Pq (Cavity quantum electrodynamics; micromasers) 03.65.Yz (Decoherence; open systems; quantum statistical methods)