Local density approximation for superconductors

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

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


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.

Original languageAmerican English
Pages (from-to)2628-2631
Number of pages4
JournalPhysical Review Letters
Issue number13
StatePublished - 1 Jan 1999
Externally publishedYes


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