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29 March 2024
 
  » arxiv » cond-mat/0107108

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A note on cluster methods for strongly correlated electron systems
Giulio Biroli ; Gabriel Kotliar ;
Date 5 Jul 2001
Subject Strongly Correlated Electrons | cond-mat.str-el
AbstractWe 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.
Source arXiv, cond-mat/0107108
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