http://www.cnr.it/ontology/cnr/individuo/prodotto/ID197668
Augmented hybrid exact-diagonalization solver for dynamical mean field theory (Articolo in rivista)
- Type
- Label
- Augmented hybrid exact-diagonalization solver for dynamical mean field theory (Articolo in rivista) (literal)
- Anno
- 2012-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1103/PhysRevB.86.115136 (literal)
- Alternative label
Weber, C.; Amaricci, A.; Capone, M.; Littlewood, P. (2012)
Augmented hybrid exact-diagonalization solver for dynamical mean field theory
in Physical review. B, Condensed matter and materials physics; APS, American physical society, College Park, MD (Stati Uniti d'America)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Weber, C.; Amaricci, A.; Capone, M.; Littlewood, P. (literal)
- Pagina inizio
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://prb.aps.org/abstract/PRB/v86/i11/e115136 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1King's College London, Materials and Molecular Modelling, The Strand, London WC2R 2LS, United Kingdom
2Cavendish Laboratory, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom
3CNR-IOM and SISSA, Via Bonomea 265, 34136 Trieste, Italy
4Physics Department, University \"Sapienza\", Piazzale A. Moro 2, 00185 Rome, Italy
5Physical Sciences and Engineering, Argonne National Laboratory, Argonne, Illinois 60439, USA (literal)
- Titolo
- Augmented hybrid exact-diagonalization solver for dynamical mean field theory (literal)
- Abstract
- We present a methodology to solve the Anderson impurity model in the context of dynamical mean field theory based on the exact-diagonalization method. We propose a strategy to effectively refine the exact-diagonalization solver by combining a finite-temperature Lanczos algorithm with an adapted version of the cluster perturbation theory. We show that the augmented diagonalization yields an improved accuracy in the description of the spectral function of the single-band Hubbard model and is a reliable approach for a full d-orbital manifold calculation. (literal)
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