用含时密度泛函方法模拟氢分子高次谐波的发生_论文资源网 义梯度近似(GGA,General Gradient Approximation)的PBE参数方式,它比常用的绝热局域密度近似(ALDA,Adiabatic Local Density Approximation)愈加适用于非平均电子气体。最后的V(r,t)是含时激光外场对系统的作用。 在计算系统的含时演化进
That's the familiar voice of Alan Alda, star of stage, screen and science.
大家现在听到的就是亚伦·艾达，这位舞台、银幕和科学方面的巨星的声音。
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We have an interview scheduled with Alan Alda at our Scientific American offices Wednesday afternoon. We’ll play that conversation on the Science Talk podcast later this week.