On the Validity of the Dynamical Mean-Field Approximation for Studying the Two-Dimensional Hubbard Model on a Square Lattice

The dynamical mean-field approximation (DMFA) becomes exact in the limit of infinite dimensions, and allows results to be obtained in a nonperturbative regime without the limitations normally found with exact diagonalization (ED) and quantum Monte Carlo (QMC) methods. In this paper, we investigate t...

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Bibliographic Details
Main Authors: A. N. Ribeiro, C. A. Macedo
Format: Article
Language:English
Published: Wiley 2010-01-01
Series:Advances in Condensed Matter Physics
Online Access:http://dx.doi.org/10.1155/2010/487381
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