二项式光场中运动的■型三能级原子偶极振幅平方压缩  

Dipole amplitude-squared squeezing of a moving ■-type three-level atom in the binomial states field

作　　者：臧学平[1,2] 杨名[2] 

机构地区：[1]池州学院物理与机电工程系,安徽池州247000 [2]安徽大学物理与材料科学学院,安徽合肥230032

出　　处：《量子电子学报》2009年第3期327-332,共6页Chinese Journal of Quantum Electronics

基　　金：安徽省重点科研计划项目(07020504120);池州学院科研项目(xk0836)

摘　　要：采用求解Schrdinger方程和数值计算方法,研究了与二项式光场相互作用的■型运动三能级原子的偶极振幅平方压缩特性,分析了光场参数、场模速度参数、参数η和光场与原子的耦合系数对原子偶极振幅平方压缩的影响。结果表明,随光场参数增大,原子偶极振幅平方从无压缩到呈现周期性压缩,压缩深度逐渐加深;随场模速度参数增大,原子偶极振幅平方由周期性不完全压缩到完全压缩;随参数η增大,原子偶极振幅平方从不压缩到周期性压缩,最后过渡到不压缩;光场与原子的耦合系数不影响原子偶极振幅平方压缩。The atomic dipole amplitude-squared squeezing characteristics of a Ξ-type three-level atom interacting with the binomial states field were studied by solving Schroedinger equation and numerical calculation. The effects of the optical field parameter, the field-mode speed, the η-parameter, and the optical field and atomic coupling coefficient on the atomic dipole amplitude-squared squeezing characteristics were analyzed. The results indicate that, with the optical field parameter increasing, the atomic dipole amplitude-squared waries from having no compresses to presenting the periodic squeezing, and the squeezing depth deepens gradually. With the field-mold speed increasing, the atomic dipole amplitude-squared changes from squeezing incompletely to completely. With the η-parameter increasing, the atomic dipole amplitude-squared varies from no compress to the periodic squeezing, finally to squeezing. The optical field and the atomic coupling coefficient do not affect an atomic dipole amplitude square squeezing.

关 键 词：量子光学 振幅平方压缩 二项式光场 运动三能级原子 

分 类 号：O431.2[机械工程—光学工程]