具有克尔非线性的耦合光机械系统中两个机械振荡器的量子同步

Quantum synchronization of two mechanical oscillators in coupled optomechanical systems with Kerr nonlinearity.

作者信息

Qiao Guo-Jian, Gao Hui-Xia, Liu Hao-di, Yi X X

机构信息

Center for Quantum Sciences and School of Physics, Northeast Normal University, Changchun, 130024, China.

National Demonstration Center for Experimental Physics Education, Northeast Normal University, Changchun, 130024, China.

出版信息

Sci Rep. 2018 Oct 23;8(1):15614. doi: 10.1038/s41598-018-33903-z.

DOI:10.1038/s41598-018-33903-z

PMID:30353112

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6199267/

Abstract

We investigate the quantum synchronization phenomena of two mechanical oscillators of different frequencies in two optomechanical systems under periodically modulating cavity detunings or driving amplitudes, which can interact mutually through an optical fiber or a phonon tunneling. The cavities are filled with Kerr-type nonlinear medium. It is found that, no matter which the coupling and periodically modulation we choose, both of the quantum synchronization of nonlinear optomechanical system are more appealing than the linear optomechanical system. It is easier to observe greatly enhanced quantum synchronization with Kerr nonlinearity. In addition, the different influences on the quantum synchronization between the two coupling ways and the two modulating ways are compared and discussed.

摘要

我们研究了在两个光机械系统中，通过周期性调制腔失谐或驱动幅度，两个不同频率的机械振子的量子同步现象，这两个系统可以通过光纤或声子隧穿相互作用。腔中填充有克尔型非线性介质。研究发现，无论我们选择何种耦合和周期性调制方式，非线性光机械系统的量子同步都比线性光机械系统更具吸引力。利用克尔非线性更容易观察到显著增强的量子同步。此外，还比较和讨论了两种耦合方式和两种调制方式对量子同步的不同影响。