两纠缠原子与光场Raman相互作用过程中光场的压缩特性  

Squeezing Properties of Light of Two Identical Two-Level Entangled Atoms Raman Interacting With Coherent State

作　　者：宋军[1] 

机构地区：[1]皖西学院数理系,安徽六安237012

出　　处：《安徽师范大学学报（自然科学版）》2008年第6期525-528,共4页Journal of Anhui Normal University(Natural Science)

基　　金：安徽省教育厅重大科研项目基金(ZD2007002-1);安徽省高校优秀中青年骨干教师项目

摘　　要：研究了两纠缠原子与相干态光场Raman相互作用过程中光场的压缩特性及两原子初始纠缠度和系统耦合常数对光场压缩的影响.数值计算表明:光场较弱时,系统光场的涨落可以被压缩,且随着初始两原子纠缠度的增加,光场涨落的平均值下移,压缩深度增加,压缩时间延长,在初始时刻两原子处于最大纠缠态时,系统光场压缩效应最明显.In this article, the squeezing properties of light in the system of two identical two- level entangled atoms Raman interacting with the coherent optical field are studied. The results obtained by numerical method show that light squeezing effects depend on the mean photon numbers of the coherent optical field and the degree of entanglement of the initial two identical two-level entangled atoms, with the increasing of the degree of entanglement of the initial two entangled atoms, the average value of the fluctuation of two quadrature components of light decreases and the squeezing time is prolonged.

关 键 词：纠缠原子 相干态 RAMAN相互作用 光场的压缩特性 

分 类 号：O431.2[机械工程—光学工程]