Self-consistent calculation of total energies of the electron gas using many-body perturbation theory

P Garcia-Gonzalez; R W Godby

doi:10.1103/PhysRevB.63.075112

Self-consistent calculation of total energies of the electron gas using many-body perturbation theory

P Garcia-Gonzalez, R W Godby

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

The performance of many-body perturbation theory for calculating ground-state properties is investigated. We present fully numerical results for the electron gas in three and two dimensions in the framework of the GW approximation. The overall agreement with very accurate Monte Carlo data is excellent, even for those ranges of densities for which the GW approach is often supposed to be unsuitable. The latter seems to be due to the fulfillment of general conservation rules. These results open further prospects for accurate calculations of ground-state properties circumventing the limitations of standard density-functional theory.

Original language	English
Article number	075112
Pages (from-to)	-
Number of pages	4
Journal	Physical Review B
Volume	63
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.63.075112
Publication status	Published - 15 Feb 2001

Bibliographical note

Keywords

SPACE-TIME METHOD
GROUND-STATE
GW APPROXIMATION
DENSITY
SEMICONDUCTORS
SILICON
METALS

Access to Document

10.1103/PhysRevB.63.075112

godby_front_page.pdf

Cite this

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title = "Self-consistent calculation of total energies of the electron gas using many-body perturbation theory",

abstract = "The performance of many-body perturbation theory for calculating ground-state properties is investigated. We present fully numerical results for the electron gas in three and two dimensions in the framework of the GW approximation. The overall agreement with very accurate Monte Carlo data is excellent, even for those ranges of densities for which the GW approach is often supposed to be unsuitable. The latter seems to be due to the fulfillment of general conservation rules. These results open further prospects for accurate calculations of ground-state properties circumventing the limitations of standard density-functional theory.",

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KW - GW APPROXIMATION

KW - DENSITY

KW - SEMICONDUCTORS

KW - SILICON

KW - METALS

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