采用拟谱法和劈裂算符法,数值模拟了脉冲激光场与氢原子系统相互作用液化过程.当输入激光场为正弦波形式时,氢原子电子的拉比振荡波形为正弦波；当输入激光场为调幅场时,其拉比振荡波形为方波,但存在较严重的布居泄露；当对氢原子外加限制势时,在保证拉比振荡为方波的前提下,可以通过降低激光场的强度来减少布居泄露,达到完全布居传输的目的.
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