研究Kerr介质中,非旋波近似下两个二能级原子与单模光场相互作用系统的原子占居态几率的时间演化,讨论了Kerr效应和虚光场效应对原子占居态几率的影响.结果表明:虚光场的影响使原子占居态几率的时间演化曲线中出现量子噪声,光场频率ω的增大使量子噪声减小,原子间耦合系数g的增大使各能级原子占居态几率曲线的振幅减小,Kerr介质常量μ的增大使原子停留在初始状态的几率增大.

In this paper, the evolution of the occupation probability in the system of two two-level atoms interacting with a single mode light field in the Kerr medium is studied by C-RWA. The influences of Kerr effect and virtual photon field effect on the occupation probability are also discussed. It has been shown that the quantum noise appears under C-RWA;the quantum noise becomes weak while ω increases: the amplitude of Rabi oscillation decreases while g increases, and the occupation probability of initial state increases while μ increases.