Kerr介质中V型原子压缩场系统的非经典性质  

Non-classical Properties of the System of the V-type Atom Interacting with a Squeezed Field in Kerr Medium

作　　者：刘素梅[1] 

机构地区：[1]南京理工大学理学院应用物理系,南京210094

出　　处：《光电子．激光》2004年第7期871-876,共6页Journal of Optoelectronics·Laser

基　　金：南京理工大学科研发展基金资助。

摘　　要：利用全量子理论,研究了存在Kerr介质的高Q腔中压缩相干态光场与V型三能级原子相互作用系统光子统计演化特性的时间演化规律。结果表明:Kerr介质和原子 场的耦合系数λ都影响平均光子数演化的周期性,Kerr介质存在使光场与原子的关联程度减弱;光场相干振幅分量模平方|α|2和光场压缩因子γ同样影响平均光子数演化的周期性,随着|α|2和γ的增加,光场与原子的关联程度先增加后减弱。The photon statistical evolution vs.time in the system of V-type atom interacting with squeezed coherent light field inside a high Q cavity field with a Kerr medium was investigated by means of the quantum theory.It has been shown that:the Kerr medium and the coupling parameters λ of the light field-atom will influence the periodicity of the evolution of the mean photon number,And Kerr medium meke the connected degree between field and atoms weaken.Meanwhile,the coherent vibration amplitude ｜α｜~2 and the squeezed light field factors γ also influence the periodicity of the evolution of the mean photon number;the connected degree between field and atoms is strengthen first and is weaken later when ｜α｜~2 and γ increase.

关 键 词：KERR介质 压缩相干态光场 V型三能级原子 平均光子数 

分 类 号：O437.2[机械工程—光学工程]