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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 | 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. | Source: | arXiv, cond-mat/0107108 | Services: | Forum | Review | PDF | Favorites |
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