Analysis of the dynamical cluster approximation for the Hubbard model

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Aryanpour, K.; Hettler, M. H.; Jarrell, M.;

We examine a central approximation of the recently introduced Dynamical Cluster Approximation (DCA) by example of the Hubbard model. By both analytical and numerical means we study non-compact and compact contributions to the thermodynamic potential. We show that approx... View more
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