Screened interaction and self-energy in an infinitesimally polarized electron gas via the Kukkonen-Overhauser method

Authors
Yarlagadda, S Giuliani, GF
Citation
S. Yarlagadda et Gf. Giuliani, Screened interaction and self-energy in an infinitesimally polarized electron gas via the Kukkonen-Overhauser method, PHYS REV B, 61(19), 2000, pp. 12556-12559
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
61
Issue
19
Year of publication
2000
Pages
12556 - 12559
Database
ISI
SICI code
0163-1829(20000515)61:19<12556:SIASIA>2.0.ZU;2-P
Abstract
The screened electron-electron interaction W-sigma,W-sigma' and the electro n self-energy in an infinitesimally polarized electron gas are derived by e xtending the approach of Kukkonen and Overhauser. Various quantities in the expression for W-sigma,W-sigma' are identified in terms of the relevant re sponse functions of the electron gas. The self-energy is obtained from W-si gma,W-sigma' by making use of the GW method which in this case represents a consistent approximation. Contact with previous calculations is made.