Quantum coherence transfer between an optical cavity and mechanical resonators
Quantum coherence transfer between an optical cavity and mechanical resonators
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光腔和机械谐振器之间的量子相干传输
DOI：
10.1007/s11433-018-9413-4
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Lan YueHeng
中科院分区：
文献类型：
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作者：
Li GuoYao;Nie WenJie;Li XiYun;Li MingCui;Chen AiXi;Lan YueHeng
本文着重从理论上研究了机械振荡器中的量子相干性及其在一个光腔和两个机械振荡器组成的光机系统的腔模和机械模之间的传递。在本研究中，两个机械振子以不同的光机耦合强度同时耦合到光腔。发现光学模和机械模之间的量子相干转移强烈地依赖于两个光机械耦合的相对大小。观察到激光功率、腔和机械振荡器的衰减率、环境温度和机械振荡器的频率对所研究的量子相干性有显著影响。此外，光机系统中量子相干的产生受到系统稳定性条件的限制，这有助于在光机系统中维持高而稳定的量子相干。
This study highlights the theoretical investigation of quantum coherence in mechanical oscillators and its transfer between the cavity and mechanical modes of an optomechanical system comprising an optical cavity and two mechanical oscillators that, in this study, were simultaneously coupled to the optical cavity at different optomechanical coupling strengths. The quantum coherence transfer between the optical and mechanical modes is found to depend strongly on the relative magnitude of the two optomechanical couplings. The laser power, decay rates of the cavity and mechanical oscillators, environmental temperature, and frequency of the mechanical oscillator are observed to significantly influence the investigated quantum coherences. Moreover, quantum coherence generation in the optomechanical system is restricted by the system’s stability condition, which helps sustain high and stable quantum coherence in the optomechanical system.