Entangling two oscillating mirrors in an optomechanical system via a flying atom  

作　　者：Yu-Bao Zhang Jun-Hao Liu Ya-Fei Yu Zhi-Ming Zhang 张玉宝;刘军浩;於亚飞;张智明(Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices (SIPSE),Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Normal University)

机构地区：Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices（SIPSE）,Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials,South China Normal University,Guangzhou 510006,China

出　　处：《Chinese Physics B》2018年第7期357-361,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11574092,61775062,61378012,91121023,and 60978009);the National Basic Research Program of China(Grant No.2013CB921804)

摘　　要：We propose a novel scheme for generating the entanglement of two oscillating mirrors in an optomechanical system via a flying atom. In this scheme, a two-level atom, in an arbitrary superposition state, passes through an optomechanical system with two oscillating cavity-mirrors, and then its states are detected. In this way, we can generate the entangled states of the two oscillating mirrors. We derive the analytical expressions of the entangled states and make numerical calculations. We find that the entanglement of the two oscillating mirrors can be controlled by the initial state of the atom, the optomechanical coupling strength, and the coupling strength between the atom and the cavity field. We investigate the dynamics of the system with dissipations and discuss the experimental feasibility.We propose a novel scheme for generating the entanglement of two oscillating mirrors in an optomechanical system via a flying atom. In this scheme, a two-level atom, in an arbitrary superposition state, passes through an optomechanical system with two oscillating cavity-mirrors, and then its states are detected. In this way, we can generate the entangled states of the two oscillating mirrors. We derive the analytical expressions of the entangled states and make numerical calculations. We find that the entanglement of the two oscillating mirrors can be controlled by the initial state of the atom, the optomechanical coupling strength, and the coupling strength between the atom and the cavity field. We investigate the dynamics of the system with dissipations and discuss the experimental feasibility.

关 键 词：quantum entanglement optomechanical system dissipative dynamics 

分 类 号：O562[理学—原子与分子物理]