Kerr效应对T-C模型中原子布居数的影响  

Influence of Kerr Effect on the Atomic Occupancy in the Tavis-Cummings Model in Kerr Medium

作　　者：方家元[1] 黄春佳[1] 周明[1] 黄祖洪[1] 

机构地区：[1]长沙电力学院物理与信息工程系,湖南长沙410077

出　　处：《量子光学学报》2003年第1期10-15,共6页Journal of Quantum Optics

基　　金：湖南省教育厅基金(011040010128).

摘　　要：应用全量子理论,研究了Kerr介质中双模压缩真空场与耦合二能级原子相互作用系统原子布居差的时间演化规律,讨论了初始压缩因子、介质与辐射场的耦合强度对原子布居时间演化的影响。结果表明,随着Kerr效应的加强,原子布居的崩塌—回复周期变短,以至消失,振荡幅度减小。?The time evolution of atomic occupancy in the system of two-mode squeezing vacuum field interacting with two coupled atoms in Kerr medium is studied by means of quantum theory. The influences of initial squeezed parameter r and coupled constant χ are discussed. The results show the periods of the collapses-revivals become short up to disappearance, as well as the amplitude of oscillations decreases with increasing the Kerr effect.

关 键 词：量子光学 克尔介质 双模光场 耦合二能级原子 原子布居数 KERR效应 T—C模型 相互作用系统 

分 类 号：O431.2[机械工程—光学工程]