Quantum Coherence Regulated by Nanoparticles in a Whispering-Gallery-Mode Microresonator,Annalen Der Physik

当前位置： X-MOL 学术 › Ann. Phys. (Berlin) › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Quantum Coherence Regulated by Nanoparticles in a Whispering-Gallery-Mode Microresonator
Annalen Der Physik ( IF 2.2 ) Pub Date : 2021-08-26 , DOI: 10.1002/andp.202100210
Jia‐Xin Peng ₁ , Chao Jin ₂ , Lei Jin ₃ , Zeng‐Xing Liu ₄

Affiliation

A theoretical investigation of the macroscopic quantum coherence in a whispering-gallery-mode optical microresonator is conducted, where clockwise (CW) and counterclockwise (CCW) propagating modes are coupled in nonreciprocal non-Hermitian manner induced by nanoparticles. The results indicate that the dynamic control of quantum coherence/intercoherence can be realized by adjusting relative phase angle of the nanoparticles. A rather more exotic finding is that chiral optical quantum coherence can be achieved in the context of asymmetric backscattering. Especially in the vicinity of the exceptional point, chiral optical quantum coherence phenomenon is most obvious; that is, the CW(CCW) mode generated by backscattering exhibits strong quantum coherence while the coherence of CCW(CW) mode generated by backscattering is completely suppressed. Further, the optomechanical coherence between photons and phonons also shows chiral behavior. Finally, the experimental feasibility of quantum coherence is evaluated, and experimental scheme to readout and measure coherence is discussed briefly.

中文翻译：

在回音画廊模式微谐振器中由纳米粒子调节的量子相干性

对回音壁模式光学微谐振器中的宏观量子相干性进行了理论研究，其中顺时针 (CW) 和逆时针 (CCW) 传播模式以由纳米粒子诱导的非互易非厄米方式耦合。结果表明，通过调节纳米粒子的相对相位角可以实现对量子相干/互相干的动态控制。一个更奇特的发现是手性光量子相干性可以在不对称反向散射的背景下实现。特别是在异常点附近，手征光量子相干现象最为明显；即背向散射产生的CW(CCW)模式表现出很强的量子相干性，而反向散射产生的CCW(CW)模式的相干性完全被抑制。更远，光子和声子之间的光机械相干性也显示出手征行为。最后，评估了量子相干性的实验可行性，并简要讨论了读取和测量相干性的实验方案。

更新日期：2021-08-26

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11