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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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    Criterion of quantum synchronization and controllable quantum synchronization based on an 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, WL (reprint author), Dalian Univ Technol, Sch Phys & Optoelect Engn, Dalian 116024, Peoples R China.

    合写作者:Li, Chong,Song, Heshan

    发表时间:2015-02-14

    发表刊物:JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

    收录刊物:SCIE、EI、Scopus

    卷号:48

    期号:3

    ISSN号:0953-4075

    关键字:quantum synchronization; optomechanical system; Lyapunov exponent

    摘要:We propose a quantitative criterion to determine whether the coupled quantum systems can achieve complete synchronization or phase synchronization in the process of analyzing quantum synchronization. Adopting the criterion, we discuss the quantum synchronization effects between optomechanical systems and find that the error between the systems and the fluctuation of error is sensitive to coupling intensity by calculating the largest Lyapunov exponent of the model and quantum fluctuation, respectively. By taking the appropriate coupling intensity, we can control quantum synchronization even under different logical relationships between switches. Finally, we simulate the dynamical evolution of the system to verify the quantum synchronization criterion and to show the ability of synchronization control.