论文标题

环境的中心频率对压电光学设备中非马克维亚动力学的影响

Impact of the Central Frequency of Environment on Non-Markovian Dynamics in Piezoelectric Optomechanical Devices

论文作者

Ding, Quanzhen, Zhao, Peng, Ma, Yonghong, Chen, Yusui

论文摘要

压电光学机械设备提供了一个有前途的实验平台,以实现通过超导电子启动(MHz)频率运行的超导电子驱动器的连贯和有效的控制和测量。但是,当机械振荡器的大小进入纳米级时,量子波动是不可避免的。由于缺乏分析工具,嘈杂环境的后果仍然具有挑战性。在本文中,引入并解决了非马克维亚级中的量子状态扩散(QSD)轨迹,并解决了与嘈杂的玻色量量子环境结合的压电光学机械系统的半古典和全量器模型。我们表明,嘈杂的环境,尤其是环境的中心频率,可以在某些参数状态下增强光腔和LC电路之间的纠缠产生。此外,我们观察到系数函数的关键点,这些函数可以引导系统中的不同行为。此外,由于环境的记忆效应,我们还见证了宏观对象之间的纠缠转移。我们的工作可以应用于电/光学开关领域,并在大规模量子网络中进行长距离分布。

The piezoelectric optomechanical devices supply a promising experimental platform to realize the coherent and effective control and measurement of optical circuits working in Terahertz (THz) frequencies via superconducting electron devices typically working in Radio (MHz) frequencies. However, quantum fluctuations are unavoidable when the size of mechanical oscillators enters into the nanoscale. The consequences of the noisy environment are still challenging due to the lack of analytical tools. In this paper, a semi-classical and full-quantum model of piezoelectric optomechanical systems coupled to a noisy bosonic quantum environment are introduced and solved in terms of quantum-state diffusion (QSD) trajectories in the non-Markovian regime. We show that the noisy environment, particularly the central frequency of the environment, can enhance the entanglement generation between optical cavities and LC circuits in some parameter regimes. Moreover, we observe the critical points in the coefficient functions, which can lead the different behaviors in the system. Besides, we also witness the entanglement transfers between macroscopic objects due to the memory effect of the environment. Our work can be applied in the fields of electric/ optical switches, and long-distance distribution in a large-scale quantum network.

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