Nonclassical Properties in Optomechanical System Controlled by Single-photon Catalysis
Nonclassical Properties in Optomechanical System Controlled by Single-photon Catalysis
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DOI：
10.1007/s10773-019-04321-2
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发表时间：
2019-11
影响因子：
1.4
通讯作者：
Ji-zhu Peng;Meng-Ran Chen;Bing Liu;Ye-jun Xu
中科院分区：
文献类型：
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作者：
Ji-zhu Peng;Meng-Ran Chen;Bing Liu;Ye-jun Xu
提出了一种研究单光子催化运行对光机系统动力学影响的方案。通过分析平均光子(声子)数、光子(声子)数分布、Mandel Q参数、二阶关联函数和Wigner函数，研究了催化态的非经典性质。根据操作前后状态的保真度，发现通过最佳的催化作用，光机学态的量子性质受到显著影响。在小幅度相干态的大催化参数区，光-机械纠缠可以得到增强。特别地，力学状态的Wigner函数可以表示为位移类数态的Wigner函数的叠加，其中权重取决于催化参数的值。有趣的结果表明，调节催化参数可以有效地控制腔模和力学模的非经典性质。这项工作可能为控制光学力学状态，特别是非经典力学状态的非经典性质提供一条新的途径。
A scheme is proposed to investigate the influence of single-photon catalysis operation on the dynamics of optomechanical system. The nonclassicalities of the catalyzed states are studied by analyzing mean photon(phonon) number, photon(phonon) number distribution, Mandel Q parameter, second-order correlation functions and Wigner function. According to the fidelity between the states before and after operation, it is found that the quantum properties of optomechanical states are significantly affected via the optimum catalysis. The optomechanical entanglement can be enhanced in the large catalysis parameter region with the small-amplitude coherent state. In particular, the Wigner function of the mechanical state can be represented by superposition of Wigner function of displaced number-like states in which the weights depend on the value of catalysis parameter. The interesting results show that tuning the catalysis parameter can manipulate efficiently the nonclassical properties of cavity mode and mechanical mode. This work might provide a new pathway to control the nonclassicalities of the optomechanical states, especially the nonclassical mechanical states.