TY - JOUR
T1 - Local density approximation for superconductors
AU - Kurth, S.
AU - Marques, M.
AU - Lüders, M.
AU - Gross, E. K.U.
PY - 1999/1/1
Y1 - 1999/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0032606244&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.83.2628
DO - 10.1103/PhysRevLett.83.2628
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AN - SCOPUS:0032606244
SN - 0031-9007
VL - 83
SP - 2628
EP - 2631
JO - Physical Review Letters
JF - Physical Review Letters
IS - 13
ER -