Title
Interpolation scheme for dynamic electron correlations in the electron-gas Interpolation scheme for dynamic electron correlations in the electron-gas
Author
Publication type
article
Publication
New York, N.Y. ,
Subject
Physics
Source (journal)
Solid state communications. - New York, N.Y.
Volume/pages
88() :7 , p. 503-505
ISSN
0038-1098
ISI
A1993MJ32100002
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
An analytical interpolation scheme is proposed to include correlation effects in the local-field correction G(q,w) of the electron gas. Rigorous asymptotic limits of G(q,w) for large and small wave vectors and frequencies are combined with the known frequency dependent behaviour of G(q,w), as revealed by the time dependent HF-approximation. The correct interpretation of the known sum rules in the limits of small and large wave vectors and frequencies is of crucial importance for estimating the correlation contributions.
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