BAND-GAP RENORMALIZATION IN QUASI-ONE-DIMENSIONAL ELECTRON-HOLE SYSTEMS

Authors
TANATAR B
Citation
B. Tanatar, BAND-GAP RENORMALIZATION IN QUASI-ONE-DIMENSIONAL ELECTRON-HOLE SYSTEMS, Journal of physics. Condensed matter, 8(33), 1996, pp. 5997-6004
Citations number
26
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
8
Issue
33
Year of publication
1996
Pages
5997 - 6004
Database
ISI
SICI code
0953-8984(1996)8:33<5997:BRIQES>2.0.ZU;2-I
Abstract
We study the band-gap renormalization (BGR) in semiconductor quantum w ires. Assuming an electron-hole system in quasi-equilibrium, we employ the random-phase approximation (RPA) and beyond (e.g., focal-field co rrections) to calculate the electron and the hole self-energies. The p lasmon-pole approximation to the static dielectric function epsilon(q) agrees well with the RPA result. Our results for the BGR are compared with the recent experimental measurements and other theoretical calcu lations.