Absence of certain exchange driven instabilities of an electron gas at high densities

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Absence of certain exchange driven instabilities of an electron gas at high densities

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Title: Absence of certain exchange driven instabilities of an electron gas at high densities
Author: Vignale, Giovanni, 1957-; Giuliani, Gabriele, 1953-
Keywords: Fermi-liquid theory and other phenomenological models
fermi gas
exchange, correlation, dielectric and magnetic response functions
Date: 2008-08-13
Publisher: American Physical Society
Citation: Phys. Rev. B 78, 075110 (2008) [3 pages]
Abstract: In the high-density limit the exchange energy easily overcomes the correlation energy in both two- and three-dimensional electron liquids. It is therefore reasonable to inquire if the class of exchange driven instabilities first discussed by Overhauser within the Hartree-Fock theory could be of relevance in this limit. Our analysis shows that this is not the case at least for distorted states represented by a single Slater determinant.
URI: http://hdl.handle.net/10355/7680
ISSN: 1098-0121

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