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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2007, Volume 86, Issue 10, Pages 769–774 (Mi jetpl923)  
This article is cited in 37 scientific papers (total in 37 papers)

CONDENSED MATTER

Cluster Dual Fermion Approach to Nonlocal Correlations

H. Hafermanna, S. Brenera, A. N. Rubtsovb, M. I. Katsnel'sonc, A. I. Lichtensteina

a Institute of Theoretical Physics, University of Hamburg, 20355 Hamburg, Germany
b Department of Physics, Moscow State University
c Institute for Molecules and Materials, Radboud University, 6525 ED Nijmegen, The Netherlands
Full-text PDF (812 kB) Citations (37)
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Abstract: We formulate a general cluster Dual Fermion Approach to nonlocal correlations in crystals. The scheme allows the treatment of long-range correlations beyond the cluster DMFT and nonlocal effects in realistic calculations of multiorbital systems. We show that the simplest approximation exactly corresponds to the freecluster DMFT. We apply this approach to the one-dimensional Hubbard model. Already the first dual-fermion correction to the free cluster leads to a drastic improvement of the calculated Green function.
Received: 13.09.2007
Revised: 18.10.2007
English version:
Journal of Experimental and Theoretical Physics Letters, 2007, Volume 86, Issue 10, Pages 677–682
DOI: https://doi.org/10.1134/S0021364007220134
Bibliographic databases:
Document Type: Article
PACS: 71.10.Fd, 71.15.-m, 71.27.+a
Language: English
Citation: H. Hafermann, S. Brener, A. N. Rubtsov, M. I. Katsnel'son, A. I. Lichtenstein, “Cluster Dual Fermion Approach to Nonlocal Correlations”, Pis'ma v Zh. Èksper. Teoret. Fiz., 86:10 (2007), 769–774; JETP Letters, 86:10 (2007), 677–682
Citation in format AMSBIB
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\paper Cluster Dual Fermion Approach to Nonlocal Correlations
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\pages 769--774
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\transl
\jour JETP Letters
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\pages 677--682
\crossref{https://doi.org/10.1134/S0021364007220134}
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    • This publication is cited in the following 37 articles:
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