Local density approximation for superconductors

S. Kurth; M. Marques; M. Lüders; E. K.U. Gross

doi:10.1103/PhysRevLett.83.2628

Local density approximation for superconductors

S. Kurth
, M. Marques
, M. Lüders
, E. K.U. Gross

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

57 Scopus citations

Abstract

A universal LDA-type density functional describing the electronic correlations in superconductors is developed from first principles. The functional is constructed from the exchange-correlation free-energy density, f_xc^hom, of a homogeneous electron gas exposed to an external translationally invariant pairing field. The quantity f_xc^hom, which is a function of the density and a functional of the induced order parameter, is calculated by many-body perturbation theory.

Original language	English
Pages (from-to)	2628-2631
Number of pages	4
Journal	Physical Review Letters
Volume	83
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.83.2628
State	Published - 1 Jan 1999
Externally published	Yes

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10.1103/PhysRevLett.83.2628

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abstract = "A universal LDA-type density functional describing the electronic correlations in superconductors is developed from first principles. The functional is constructed from the exchange-correlation free-energy density, fxchom, of a homogeneous electron gas exposed to an external translationally invariant pairing field. The quantity fxchom, which is a function of the density and a functional of the induced order parameter, is calculated by many-body perturbation theory.",

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Local density approximation for superconductors

Abstract

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