Dissipative quantum phase transition in a biased Tavis-Cummings model

作     者：Zhen Chen Yueyin Qiu Guo-Qiang Zhang Jian-Qiang You 陈臻;邱岳寅;张国强;游建强

作者机构：Quantum Physics and Quantum Information DivisionBeijing Computational Science Research CenterBeijing 100193China Interdisciplinary Center of Quantum Information and Zhejiang Province Key Laboratory of Quantum Technology and DeviceDepartment of Physics and State Key Laboratory of Modern Optical InstrumentationZhejiang UniversityHangzhou 310027China Laboratory of Quantum InformationInstitute for Quantum Information and SpintronicsSchool of ScienceChongqing University of Posts and TelecommunicationsChongqing 400065China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2020年第29卷第4期

页      面：296-302页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11934010,U1801661,U1930402,and 11847087) the National Key Research and Development Program of China(Grant No.2016YFA0301200) 

主　　题：quantum phase transition dissipative ensemble of two-level systems active optical cavity Tavis-Cummings model 

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 *** our proposal,we use a dissipative TLS ensemble and an active cavity with effective *** the weak drive-field limit,the QPT can occur under the combined actions of the loss and gain of the *** to the active cavity,the QPT behavior can be much differentiated even for a finite strength of the drive field on the TLS ***,we propose to implement our scheme based on the dissipative nitrogen-vacancy(NV)centers coupled to an active optical cavity made from the gainmedium-doped ***,we show that the QPT can be measured by probing the transmission spectrum of the cavity embedding the ensemble of the NV centers.