Adjustable quantum coherence effects in a hybrid optomechanical system  

作　　者：夏文清 於亚飞 张智明 

机构地区：[1]Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials &(SIPSE),and Guangdong Provincial Key Laboratory of Quantum Engineering & Quantum Materials, South China Normal University [2]Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials &Devices(SIPSE),and Guangdong Provincial Key Laboratory of Quantum Engineering & Quantum Materials, South China Normal University [3]Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials & Devices(SIPSE),and Guangdong Provincial Key Laboratory of Quantum Engineering & Quantum Materials, South China Normal University

出　　处：《Chinese Physics B》2017年第5期188-194,共7页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11574092,61378012,91121023,and 60978009);the National Basic Research Program of China(Grant No.2013CB921804);the Innovative Research Team in University,China(Grant No.IRT1243)

摘　　要：We propose a system for achieving some adjustable quantum coherence effects, including the normal-mode splitting（NMS）, the optomechanically induced transparency（OMIT）, and the optomechanically induced absorption（OMIA）. In this system, two tunnel-coupled optomechanical cavities are each driven by a coupling field and coupled to an atomic ensemble.Besides, one of the cavities is also injected with a probe field. When the system works under different conditions, we can obtain the NMS, the OMIT, and the OMIA, respectively. These effects can be flexibly adjusted by the tunnel coupling between the two cavities, the power of the coupling lasers, and the coupling strength between the atomic ensembles and the cavity fields. Furthermore, we can realize the OMIT even if the oscillating mirrors have relatively larger decay rates.We propose a system for achieving some adjustable quantum coherence effects, including the normal-mode splitting（NMS）, the optomechanically induced transparency（OMIT）, and the optomechanically induced absorption（OMIA）. In this system, two tunnel-coupled optomechanical cavities are each driven by a coupling field and coupled to an atomic ensemble.Besides, one of the cavities is also injected with a probe field. When the system works under different conditions, we can obtain the NMS, the OMIT, and the OMIA, respectively. These effects can be flexibly adjusted by the tunnel coupling between the two cavities, the power of the coupling lasers, and the coupling strength between the atomic ensembles and the cavity fields. Furthermore, we can realize the OMIT even if the oscillating mirrors have relatively larger decay rates.

关 键 词：coherence transparency ensemble mirrors decay Hamiltonian tunnel Langevin adjustable coherent 

分 类 号：O413[理学—理论物理]