Coulomb quantum kinetics and optical dephasing on the femtosecond time scale.
Coulomb quantum kinetics and optical dephasing on the femtosecond time scale.
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DOI：
10.1103/physrevb.50.1541
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发表时间：
1994-07
期刊：
影响因子：
--
通讯作者：
El Sayed K;Bányai;Haug
中科院分区：
文献类型：
--
作者：
El Sayed K;Bányai;Haug
建立并求解了光激发电子空穴等离子体飞秒库仑动力学的带记忆的量子动力学方程。在小于逆等离子体频率的时间间隔内，仍然没有进行频率筛选和节能。由此得到的光带间偏振衰减是非指数的，并与Gurevich等人的准经典理论的结果定性一致。
Quantum kinetic equations with memory are formulated and solved for the femtosecond Coulomb kinetics of an optically excited electron-hole plasma. In a time interval smaller than the inverse plasma frequency screening and energy conservation are still absent. The resulting decay of the optical interband polarization is shown to be nonexponential and is in qualitative agreement with the results of the quasiclassical theory of Gurevich et al.