The Hartree-Fock exchange operator is an integral operator arising in the Hartree-Fock model as well as in some instances of the density functional theory. In a number of applications, it is convenient to approximate this integral operator by a multiplication operator, i.e. by a local potential. This article presents a detailed analysis of the mathematical properties of various local approximations to the nonlocal Hartree-Fock exchange operator including the Slater potential, the optimized effective potential (OEP), the Krieger-Li-Iafrate (KLI) approximation and the common-energy denominator approximation (CEDA) to the OEP, and the effective local potential (ELP). In particular, we show that the Slater, KLI, CEDA and ELP potentials all can be defined as solutions of certain variational problems, and we provide a rigorous derivation of the OEP integral equation. We also establish an existence result for a coupled system of nonlinear partial differential equations introduced by Slater to approximate the Hartree-Fock equations.
DOI : 10.5802/msia.2
Keywords: Hartree-Fock model, Density Functional theory, nonlinear eigenvalue problem
Cancès, Eric  1 ; Stoltz, Gabriel  1 ; Scuseria, Gustavo E.  2 ; Staroverov, Viktor N.  3 ; Davidson, Ernest R.  4
@article{MSIA_2009__2_1_1_0,
author = {Canc\`es, Eric and Stoltz, Gabriel and Scuseria, Gustavo E. and Staroverov, Viktor N. and Davidson, Ernest R.},
title = {Local {Exchange} {Potentials} for {Electronic} {Structure} {Calculations}},
journal = {MathematicS In Action},
pages = {1--42},
year = {2009},
publisher = {Soci\'et\'e de Math\'ematiques Appliqu\'ees et Industrielles},
volume = {2},
number = {1},
doi = {10.5802/msia.2},
mrnumber = {2520849},
zbl = {1177.47092},
language = {en},
url = {http://geodesic.mathdoc.fr/articles/10.5802/msia.2/}
}
TY - JOUR AU - Cancès, Eric AU - Stoltz, Gabriel AU - Scuseria, Gustavo E. AU - Staroverov, Viktor N. AU - Davidson, Ernest R. TI - Local Exchange Potentials for Electronic Structure Calculations JO - MathematicS In Action PY - 2009 SP - 1 EP - 42 VL - 2 IS - 1 PB - Société de Mathématiques Appliquées et Industrielles UR - http://geodesic.mathdoc.fr/articles/10.5802/msia.2/ DO - 10.5802/msia.2 LA - en ID - MSIA_2009__2_1_1_0 ER -
%0 Journal Article %A Cancès, Eric %A Stoltz, Gabriel %A Scuseria, Gustavo E. %A Staroverov, Viktor N. %A Davidson, Ernest R. %T Local Exchange Potentials for Electronic Structure Calculations %J MathematicS In Action %D 2009 %P 1-42 %V 2 %N 1 %I Société de Mathématiques Appliquées et Industrielles %U http://geodesic.mathdoc.fr/articles/10.5802/msia.2/ %R 10.5802/msia.2 %G en %F MSIA_2009__2_1_1_0
Cancès, Eric; Stoltz, Gabriel; Scuseria, Gustavo E.; Staroverov, Viktor N.; Davidson, Ernest R. Local Exchange Potentials for Electronic Structure Calculations. MathematicS In Action, Tome 2 (2009) no. 1, pp. 1-42. doi: 10.5802/msia.2
Cité par Sources :