DISTORTION OF THE FERMI-SURFACE OF AN ANISOTROPIC 2-DIMENSIONAL FERMIGAS

Authors
WU JZ GOODMAN B
Citation
Jz. Wu et B. Goodman, DISTORTION OF THE FERMI-SURFACE OF AN ANISOTROPIC 2-DIMENSIONAL FERMIGAS, International journal of quantum chemistry, 53(1), 1995, pp. 77-81
Citations number
19
Categorie Soggetti
Chemistry Physical
Journal title
International journal of quantum chemistry → ACNP
ISSN journal
00207608
Volume
53
Issue
1
Year of publication
1995
Pages
77 - 81
Database
ISI
SICI code
0020-7608(1995)53:1<77:DOTFOA>2.0.ZU;2-2
Abstract
We report here the first quantitative theory of the change of anisotro pic Fermi surfaces (FS) due to the dynamical e-e interaction. The new FS is constructed as a self-consistent solution of the Dyson equation. This incorporates effects of ''anomalous'' diagrams, absent in the us ual perturbation theory, but which are responsible for changing the Fs . Calculations are presented for 2D electrons. Correlations reduce the anisotropy. (C) 1995 John Wiley and Sons, Inc.