Publication : t02/206

A note on cluster methods for strongly correlated electron systems

Biroli G. (Center for Materials Theory, Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, New Jersey 08854, USA)
Kotliar G. (Center for Materials Theory, Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, New Jersey 08854, USA)
Abstract:
We develop, clarify and test various aspects of cluster methods dynamical mean field methods using a soluble toy model as a benchmark. We find that the Cellular Dynamical Mean Field Theory (C-DMFT) converges very rapidly and compare its convergence properties with those of the Dynamical Cluster Approximation (DCA). We propose and test improved estimators for the lattice self energy within C-DMFT.
Année de publication : 2002
Publication extérieure au service
Revue : Phys. Rev. B 65 155112 (2002)
DOI : 10.1103/PhysRevB.65.155112
Preprint : arXiv:cond-mat/0107108
Lien : http://link.aps.org/abstract/PRB/v65/p155112
Langue : Anglais
NB : [5 pp.]

Fichier(s) à télécharger :
  • publi.pdf

  •  

    Retour en haut