Strong single-photon optomechanical coupling in a hybrid quantum system
Strong single-photon optomechanical coupling in a hybrid quantum system
复制标题
混合量子系统中的强单光子光机械耦合
DOI：
10.1364/oe.438114
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发表时间：
2021-09-27
期刊：
影响因子：
3.8
通讯作者：
Li, Hai-Chao
中科院分区：
文献类型：
--
作者：
Chen, Jiaojiao;Li, Zhuanxia;Li, Hai-Chao
工程强单光子光机耦合是光机系统的关键。为此，我们提出了一个由纳米束（声子）耦合到自旋系综和腔（光子）组成的混合量子系统，利用系综-声子相互作用形成的下支极化激元（LBP）的临界特性，可以将LBP-腔耦合增强3个数量级，而上支极化激元（UBP）-腔耦合完全被抑制.我们的方案突破了以往两个谐振子方案中耦合强度小于临界值的条件。此外，在我们的建议，可以诱导强克尔效应。这表明我们提出的方法可以用来研究弱耦合光机系统中的量子非线性和非经典效应。(C)2021年美国光学学会根据OSA开放获取出版协议的条款
Engineering strong single-photon optomechanical couplings is crucial for optomechanical systems. Here, we propose a hybrid quantum system consisting of a nanobeam (phonons) coupled to a spin ensemble and a cavity (photons) to overcome it. Utilizing the critical property of the lower-branch polariton (LBP) formed by the ensemble-phonon interaction, the LBP-cavity coupling can be greatly enhanced by three orders magnitude of the original one, while the upper-branch polariton (UBP)-cavity coupling is fully suppressed. Our proposal breaks through the condition of the coupling strength less than the critical value in previous schemes using two harmonic oscillators. Also, strong Kerr effect can be induced in our proposal. This shows our proposed approach can be used to study quantum nonlinear and nonclassical effects in weakly coupled optomechanical systems. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement