物理
暗状态
简并能级
多模光纤
模式(计算机接口)
基态
谐振器
光学
量子力学
光纤
计算机科学
操作系统
作者
Huang Jian,Deng-Gao Lai,Cheng Liu,Jin‐Feng Huang,Franco Nori,Jie‐Qiao Liao
出处
期刊:Physical review
日期:2022-07-29
卷期号:106 (1)
被引量:22
标识
DOI:10.1103/physreva.106.013526
摘要
The dark-mode effect is a stubborn obstacle for ground-state cooling of multiple degenerate mechanical modes optomechanically coupled to a common cavity-field mode. Here we propose an auxiliary-cavity-mode method for simultaneous ground-state cooling of two degenerate or near-degenerate mechanical modes by breaking the dark mode. We find that the introduction of the auxiliary cavity mode not only breaks the dark-mode effect, but also provides a new cooling channel to extract the thermal excitations stored in the dark mode. Moreover, we study the general physical-coupling configurations for breaking the dark mode in a generalized networkcoupled four-mode optomechanical system consisting of two cavity modes and two mechanical modes. We find the analytical dark-mode-breaking condition in this system. This method is general and it can be generalized to break the dark-mode effect and to realize the simultaneous ground-state cooling in a multiple-mechanicalmode optomechanical system. We also demonstrate the physical mechanism behind the dark-mode breaking by studying the breaking of dark-state effect in the N-type four-level atomic system. Our results not only provide a general method to control various dark-mode and dark-state effects in physics, but also present an opportunity to the study of macroscopic quantum phenomena and applications in multiple-mechanical-resonator systems.
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