Ultrafast Dynamics and Quantum Transport of Electrons in Strongly Disordered Semiconductors

• Authors: A. Kalvová , B. Velický
• Languages of publication: EN

Abstracts

EN

The new experiments on the response of electrons in semiconductors to femtosecond optical pulses call for developing adequate theoretical tools. A promising approach has been found in using the non-equilibrium Green functions approximately factorized on the basis of the so-called generalized Kadanoff-Baym ansatz. The present work investigates the validity of such approach on an example of a semiconductor with an alloy scattering, where the coherent potential approximation allows to construct the non-equilibrium Green functions directly, so that an explicit comparison with the ansatz decoupling is possible. The ansatz for the electron distribution is in this case justified as far as the quasiparticle picture for the individual electrons is appropriate.

Keywords

EN

71.25.-s; 72.10.-d; 78.47.+p

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1995
• Volume: 88
• Issue: 4
• Pages: 767-770

Dates

published

1995-10

Contributors

author

A. Kalvová

• Inst. of Phys., Czech. Acad. Sci., Na Slovance 2, 180 40 Praha 8, Czech Republic

author

B. Velický

• Inst. of Phys., Czech. Acad. Sci., Na Slovance 2, 180 40 Praha 8, Czech Republic