The equation of three step photoionization for describing the field and the density matrix as well as the atomic population was derived.
推导了三步光电离的场方程组和原子布居的密度矩阵方程组。
The atomic population evolution vs. time in the system of two two-level coupling-atoms interacting with squeezed coherent light field is investigated.
利用全量子理论，在相互作用绘景中研究了两个耦合二能级原子与单模压缩相干态光场相互作用系统粒子布居几率的时间演化规律；
With the increase of the average photon number of the coherent light field, the oscillation frequency of the atomic population inversion increases correspondingly.
随相干光场平均光子数的增加粒子数反转的振荡频率增大；
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