Exact ground state of strongly correlated electron systems from symmetry-entangled wave-functions

Abstract : The four-site Hubbard model is considered from the exact diagonalisation and variational method points of view. It is shown that the exact ground-state can be recovered by a symmetry projected Slater determinant, irrespective of the interaction strength. This is in contrast to the Gutzwiller wave-function, which is calculated as well.
Type de document :
Article dans une revue
Annalen der Physik, 2014, 526 (9-10), pp.430-436. 〈10.1002/andp.201400129〉
Liste complète des métadonnées

http://hal.in2p3.fr/in2p3-01109338
Contributeur : Sandrine Guesnon <>
Soumis le : lundi 26 janvier 2015 - 10:34:40
Dernière modification le : samedi 27 janvier 2018 - 01:17:31

Lien texte intégral

Identifiants

Citation

A. Leprevost, O. Juillet, R. Fresard. Exact ground state of strongly correlated electron systems from symmetry-entangled wave-functions. Annalen der Physik, 2014, 526 (9-10), pp.430-436. 〈10.1002/andp.201400129〉. 〈in2p3-01109338〉

Partager

Métriques

Consultations de la notice

110