Ultrafast quantum kinetics of time-dependent RPA-screened Coulomb scattering

被引：115

作者：

Banyai, L ^{[1
]}

Vu, QT ^{[1
]}

Mieck, B ^{[1
]}

Haug, H ^{[1
]}

机构：

[1] Univ Frankfurt, Inst Theoret Phys, D-60054 Frankfurt, Germany

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.81.882

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the Coulomb quantum kinetics of relaxation and dephasing of an electron-hole gas in a semiconductor excited by a coherent femtosecond laser pulse. Our theory employs the full two-time-dependent RPA-screened Coulomb potential. The self-consistently calculated potential evolves from a bare potential to the well-known dynamically screened RPA potential for long times. The time dependence of the particle distributions, the interband polarization, and the potential are calculated. As a first application we study Rabi flopping with resonant femtosecond pulses.

引用

页码：882 / 885

页数：4

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