二能级原子的混态SU(2)压缩  

SU(2) SQUEEZING IN TWO-LEVEL ATOMIC MIXED-STATE

作　　者：刘世炳[1] 黄长春[1] 李宏[1] 

机构地区：[1]江西师范大学物理系,南昌330027

出　　处：《物理学报》1991年第10期1607-1612,共6页Acta Physica Sinica

摘　　要：本文采用时间演化算符方法研究混态下二能级原子的SU(2)压缩行为,得出有光场相互作用下的混态原子的压缩比一般纯态原子算符的SU(2)压缩还要深,而且处于准基态下比在准激发态下的压缩要深得多的新结果。通过数值计算,讨论了原子能级布居的统计几率与压缩的关系。In this paper, the behavior of SU(2) squeezing of the mixed-state in two-level atom are studied by means of the time-evolution operator method. We have obtained new results that the mixed-state atomic squeezing under interacting of the light field is deeper than the general pure-state atomic SU(2) squeezing. Furthermore, the squeezing value of the atom in pseudo-ground state is more greater than that in pseudo-excited state. The relation between the statistical probability of atomic level population and the squeezing is studied by numerical calculations.

关 键 词：二能级原子 混态 SU(z) 压缩 

分 类 号：O413[理学—理论物理]