Navegação Ciências Exatas e da Terra por Autor "Craco, Luis"
Resultados 1-2 de 2
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From the atomic limit to a metal-insulator transition in the hubbard model
(1995) [Artigo de periódico]Starting from the exact solution of the Hubbard model in the atomic limit, and treating the hopping term as a perturbation by means of a diagram technique, we discuss the electronic structure of the model in some simple ... -
Tight-binding treatment of the Hubband model in infinite dimensions
(1996) [Artigo de periódico]We discuss the infinite dimension limit of the Hubbard model by means of a perturbative expansion of the one-particle Green’s function around the atomic limit. The diagrammatic structure is simplified in this limit, allowing ...
