| 双腔光力学系统的稳态纠缠 |
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| 引用本文： | 杨智博,明莹,刘洪雨.双腔光力学系统的稳态纠缠[J].延边大学理工学报,2020,0(2):129-133. |
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| 作者姓名： | 杨智博 明莹 刘洪雨 |
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| 作者单位： | ( 延边大学 理学院, 吉林 延吉 133002 ) |
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| 摘 要： | 为了提高耦合腔光力学系统的稳态纠缠,将光学参量放大器放置到光学腔中并研究了其纠缠状.首先利用量子朗之万方程和线性化处理,求出系统的稳态解; 然后将纠缠负对数作为纠缠判据,对系统的量子纠缠进行数值模拟.研究结果表明,含有光学参量放大器的系统不但可以显著增强稳态力学纠缠,而且可使纠缠不受热库环境温度的影响; 因此,本文方案可为操控力学系统间的量子纠缠提供参考.
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| 关 键 词： | 腔光力学系统 稳态纠缠 光学参量放大器 |
The steady-state entanglement in a two-cavity optomechanical system |
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| YANG Zhibo,MING Ying,LIU Hongyu.The steady-state entanglement in a two-cavity optomechanical system[J].Journal of Yanbian University (Natural Science),2020,0(2):129-133. |
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| Authors: | YANG Zhibo MING Ying LIU Hongyu |
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| Affiliation: | ( College of Science, Yanbian University, Yanji 133002, China ) |
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| Abstract: | In order to improve the steady -state entanglement of the coupled cavity photomechanical system, one selected a cascade cavity optomechanical system for the study. First, the steady -state solution of the system is obtained by using the Langevin equation and linear processing. Then the entanglement negative logarithm is used as the entanglement criterion to simulate the quantum entanglement of the system. The results show that the system with an optical parametric amplifier can significantly enhance the steady -state mechanical entanglement, and the entanglement can not be affected by the ambient temperature of the heat reservoir. Therefore, this scheme provides an effective method for improving and manipulating quantum entanglement between mechanical systems. |
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| Keywords: | cavity optomechanical system steady -state entanglement optical parametric amplifiers |
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