典型文献
Quantum properties near the instability boundary in optomechanical system
文献摘要：
The properties of the system near the instability boundary are very sensitive to external disturbances,which is impor-tant for amplifying some physical effects or improving the sensing accuracy.In this paper,the quantum properties near the instability boundary in a simple optomechanical system have been studied by numerical simulation.Calculations show that the transitional region connecting the Gaussian states and the ring states when crossing the boundary is sometimes different from the region centered on the boundary line,but it is more essential.The change of the mechanical Wigner function in the transitional region directly reflects its bifurcation behavior in classical dynamics.Besides,quantum properties,such as mechanical second-order coherence function and optomechanical entanglement,can be used to judge the corresponding bifurcation types and estimate the parameter width and position of the transitional region.The non-Gaussian transitional states exhibit strong entanglement robustness,and the transitional region as a boundary ribbon can be expected to replace the original classical instability boundary line in future applications.
文献关键词：
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作者姓名：
Han-Hao Fang;Zhi-Jiao Deng;Zhigang Zhu;Yan-Li Zhou
作者机构：
Department of Physics,College of Liberal Arts and Sciences,National University of Defense Technology,Changsha 410073,China;Interdisciplinary Center for Quantum Information,National University of Defense Technology,Changsha 410073,China;Department of Physics,Lanzhou University of Technology,Lanzhou 730050,China
文献出处：
引用格式：
[1]Han-Hao Fang;Zhi-Jiao Deng;Zhigang Zhu;Yan-Li Zhou-.Quantum properties near the instability boundary in optomechanical system)[J].中国物理B（英文版）,2022(03):225-231
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0.559234
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