Authors

V. Turkowski; C. A. Ullrich; T. S. Rahman;M. N. Leuenberger

Comments

Authors: contact us about adding a copy of your work at [email protected]

Abbreviated Journal Title

Phys. Rev. B

Keywords

EXCITONIC MOLECULES; BINDING-ENERGY; MANY-BODY; CDS; SEMICONDUCTORS; EXCITATIONS; SYSTEMS; ZNO; Physics, Condensed Matter

Abstract

We formulate a time-dependent density-matrix functional theory (TDDMFT) approach for higher-order correlation effects like biexcitons in optical processes in solids based on a reduced two-particle density-matrix formalism within the normal orbital representation. A TDDMFT version of the Schrodinger equation for biexcitons in terms of one- and two-body reduced density matrices is derived, which leads to finite biexcitonic binding energies already with an adiabatic approximation. Biexcitonic binding energies for several bulk semiconductors are calculated using a contact biexciton model.

Journal Title

Physical Review B

Volume

82

Issue/Number

20

Publication Date

1-1-2010

Document Type

Article

Language

English

First Page

6

WOS Identifier

WOS:000284306400008

ISSN

1098-0121

Download

Share

COinS
 

Accessibility Statement

This item was created or digitized prior to April 24, 2027, or is a reproduction of legacy media created before that date. It is preserved in its original, unmodified state specifically for research, reference, or historical recordkeeping. In accordance with the ADA Title II Final Rule, the University Libraries provides accessible versions of archival materials upon request. To request an accommodation for this item, please submit an accessibility request form.