inria-00325660, version 1
On Kohn-Sham models with LDA and GGA exchange-correlation functionals
(2008)
Résumé : This article is concerned with the mathematical analysis of the Kohn-Sham and extended Kohn-Sham models, in the local density approximation (LDA) and generalized gradient approximation (GGA) frameworks. After recalling the mathematical derivation of the Kohn-Sham and extended Kohn-Sham LDA and GGA models from the Schrödinger equation, we prove that the extended Kohn-Sham LDA model has a solution for neutral and positively charged systems. We then prove a similar result for the spin-unpolarized Kohn-Sham GGA model for two-electron systems, by means of a concentration-compactness argument.
- 1 :
- INRIA – Ecole des Ponts ParisTech
- 2 :
- Ecole des Ponts ParisTech – INRIA
- Domaine : Physique/Physique Quantique
Physique/Physique mathématique
Mathématiques/Physique mathématique
Mathématiques/Théorie spectrale
Chimie/Chimie théorique et/ou physique - Mots-clés : Density functional theory – Kohn-Sham – LDA – GGA – concentration-compactness
- inria-00325660, version 1
- http://hal.inria.fr/inria-00325660
- oai:hal.inria.fr:inria-00325660
- Contributeur :
- Soumis le : Lundi 29 Septembre 2008, 19:19:43
- Dernière modification le : Mardi 30 Septembre 2008, 11:06:12



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