超短激光场中用劈裂算子演化波函数
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摘要: 介绍了用劈裂算子求解超短激光场中原子系统波函数的方法。此法比标准差分法给出更准确的模拟结果。许多结果可从演化的波函数中得到。作为例子,计算了一个简单原子的电离几率和谐波发射谱。Abstract: The splitoperator method solving the wavefunction evolution of atomic systems in ultrashort laser fields is introduced. It gives more accurate simulation results in comparison with the standard difference expression. Much information can be extracted from the timeresolved wavefunction. The ionization probability and highorder harmonic spectrum of a simple atomic model is calculated．
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