A novel many-particle approach to coherent and incoherent processes in semiconductors

Author

Schafer, W. ; Lovenich, R.

Author_Institution

Forschungszentrum Julich GmbH, Germany

fYear

2000

fDate

12-12 May 2000

Firstpage

90

Abstract

Summary form only given. We present a novel many-particle theory, which contains both of these methods as limiting cases. Our approach is based on the nonequilibrium Green´s function (NGF) technique, which is applied to perform a detailed diagrammatic analysis of the various interaction processes. Biexcitonic correlations are obtained by renormalizing polarization scattering processes and the coherent contributions to electron-electron scattering, which are both usually treated within a second order Born approximation.

Keywords

Green´s function methods; excitons; laser beam effects; light scattering; statistical mechanics; biexcitonic correlations; coherent contributions; coherent processes; diagrammatic analysis; electron-electron scattering; incoherent processes; interaction processes; many-particle approach; many-particle theory; nonequilibrium Green´s function technique; renormalizing polarization scattering processes; second order Born approximation; semiconductors; Approximation methods; Green´s function methods; Performance analysis; Polarization; Scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 2000. (QELS 2000). Technical Digest

Conference_Location

San Francisco, CA, USA

ISSN

1094-5695

Print_ISBN

1-55752-608-7

Type

conf

Filename

901684