双光子J-C模型中非旋转波效应项对原子压缩效应影响的研究  

ATOMIC SQUEEZING EFFECT DUE TO NRWA IN THE TWO PHOTON J C MODEL

作　　者：周建兰[1,2] 凌寅生 

机构地区：[1]苏州大学学报编辑部 [2]苏州大学物理科学与技术学院

出　　处：《四川师范大学学报（自然科学版）》1998年第2期170-173,共4页Journal of Sichuan Normal University（Natural Science）

摘　　要：应用数值计算方法计算双光子Ｊ－Ｃ模型中原子的压缩效应．在ＲＷＡ下原子具有较强的压缩效应．当虚光场介入时，弱耦合时还会出现相对较弱的压缩效应，强耦合时，压缩效应消失；而横向Ｓｔａｒｋ效应在弱耦合和强耦合时都使原子的压缩效应相对减弱．当两者皆存在时，即ＮＲＷＡ下原子的压缩效应减弱甚至消失．Using numerical method,we calculate atomic squeezing effect in the two photon J C model.We consider that atom has the strong squeezing effect in the RWA(Rotation Wave Approximation).When it is in weak coupling,atom has the corresponding weaker squeezing effect due to the virtual photon field effect.In strong coupling case,the squeezing effect disappears.In both the cases,the atomic squeezing effect becomes weaker because of the Stark effect.When a system holds two items,that is NRWA(Non RWA),the atomic squeezing effect weakens so far as to disappear.

关 键 词：压缩效应 旋转波近似 J-C模型 光子 双光子 原子 

分 类 号：O431[机械工程—光学工程]