Nonreciprocal Optomechanical Entanglement against Backscattering Losses
Nonreciprocal Optomechanical Entanglement against Backscattering Losses
复制标题
非互易光机纠缠对抗后向散射损耗
DOI：
10.1103/physrevlett.125.143605
复制
发表时间：
2020-10-02
影响因子：
8.6
通讯作者：
Jing, Hui
中科院分区：
文献类型：
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作者：
Jiao, Ya-Feng;Zhang, Sheng-Dian;Jing, Hui
我们提出了如何实现光和运动的非互易量子纠缠，并揭示了它对随机损失的反直觉鲁棒性。我们发现通过Sagnac效应分裂自旋共振器的反向传播光，光子和声子可以在选定的方向上强烈纠缠，但在另一个方向上完全不相关。这使得即使在没有任何经典非互易性的情况下也可以实现量子非互易性，并且还可以在实际设备中实现对抗后向散射损失的显著纠缠恢复。我们的工作提供了一种通过利用各种非互易器件来保护和设计量子资源的方法，用于构建抗噪声量子处理器，实现手性网络和反作用免疫量子传感器。
We propose how to achieve nonreciprocal quantum entanglement of light and motion and reveal its counterintuitive robustness against random losses. We find that by splitting the counterpropagating lights of a spinning resonator via the Sagnac effect, photons and phonons can be entangled strongly in a chosen direction but fully uncorrelated in the other. This makes it possible both to realize quantum nonreciprocity even in the absence of any classical nonreciprocity and also to achieve significant entanglement revival against backscattering losses in practical devices. Our work provides a way to protect and engineer quantum resources by utilizing diverse nonreciprocal devices, for building noise-tolerant quantum processors, realizing chiral networks, and backaction-immune quantum sensors.