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    李崇

    • 副教授     博士生导师   硕士生导师
    • 性别:男
    • 毕业院校:大连理工大学
    • 学位:博士
    • 所在单位:物理学院
    • 学科:理论物理
    • 办公地点:物理219室
    • 联系方式:lichong@dlut.edu.cn
    • 电子邮箱:lichong@dlut.edu.cn

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    Observation of Non-Hermitian Quantum Correlation Criterion in Mesoscopic Optomechanical System

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    论文类型:期刊论文

    第一作者:Li, Wenlin

    通讯作者:Li, C (reprint author), Dalian Univ Technol, Sch Phys & Optoelect Engn, Dalian 116024, Peoples R China.

    合写作者:Zhang, Fengyang,Li, Chong,Song, Heshan

    发表时间:2016-04-01

    发表刊物:INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS

    收录刊物:SCIE

    卷号:55

    期号:4

    页面范围:2097-2109

    ISSN号:0020-7748

    关键字:Quantum correlation criterion; Quantum chaos; Optomechanical system

    摘要:Although many quantum correlation criteria have been proposed successively in recent years, it is still an open question how to observe these criteria with the non-Hermitian terms in themselves. We propose an indirect scheme in this paper to observe non-Hermitian criteria and to judge whether or not quantum correlation exists in the system even though the expectation value measurement of non-Hermitian operator is invalid in quantum mechanics system. Our idea is to establish a critical state of mesoscopic oscillator under mean-field approximation, and the oscillator state will take place transition when the quantum correlation destroys the mean-field approximation. The non-Hermitian measurement will replace the position measurement in this process and it can be seen as a non-destructive detection. We give an example to explain this idea in a designed mesoscopic optomechanical system.