高斯型耦合多光子Tavis-Cummings 模型中原子的量子特性

摘要

研究了多光子跃迁过程高斯型耦合Tavis-Cummings模型中原子的量子特性.运用了数值计算方法,讨论了多光子跃迁过程中,原子运动速度、光场初态的平均光子数、跃迁光子数对双原子能级布居数反转和双原子偶极压缩的影响.结果表明,原子运动速度的变化改变了双原子能级布居数反转和双原子偶极压缩与光场的有效作用时间.跃迁光子数的变化改变了双原子能级布居数反转和双原子偶极压缩时间演化曲线的振荡幅度和振荡频率.%The quantum properties of atoms in Gaussian coupling Tavis-Cummings model in the multi-photon transition process are studied. The influence on atomic population inversion and double-atom dipole squeezing from atomic motion,the mean photon number in initial states of the light field,number of transition photons in the multi-photon transition process are discussed with the numerical calculation method. The results show that the variation of atomic motion changes the time for effective action between atomic population inversion, double-atom dipole squeezing and fight field. The variation of number of transition photons changes oscillation amplitude and frequency of time evolution of atomic population inversion and double-atom dipole squeezing.