强场作用下二能级原子双光子过程中原子的压缩效应  

ATOMIC SQUEEZING EFFECTS IN A TWO PHOTON PROCESS UNDER STRONG COHERENT FIELD OF INITIAL STATE

作　　者：聂义友[1] 刘三秋[1] 申世华 陶向阳[1] 付传鸿 

机构地区：[1]江西师范大学物理系,南昌330027

出　　处：《光子学报》1999年第12期1066-1070,共5页Acta Photonica Sinica

基　　金：江西省自然科学基金

摘　　要：本文采用时间演化算符方法和数值计算研究了强场作用下二能级原子双光子过程中原子的压缩效应－ 结果表明：原子出现周期性的压缩，且压缩的最大深度比弱场情况下要深得多；随着ｎ－ 值的不断增大，场与原子的非线性耦合越来越强，振荡重复地出现复苏收缩现象－In this paper,the atomic squeezing effects in the two photon process under strong coherent field of initial state are studied by means of the time evolution operator method and numerical calculation.The results show that the squeezing effects of the atom appear periodically,and the maximum value of squeezing under strong field is more greater than that under weak field;with the increasing of the value of n-,the nonlinear coupling between the field and the atom is getting stronger and stronger,and the phenomenon of revival shrink will arise repeatedly.

关 键 词：强场 双光子 原子压缩 二能级原子 

分 类 号：O431.2[机械工程—光学工程]