From the atomic limit to a metal-insulator transition in the hubbard model

dc.contributor.author	Craco, Luis	pt_BR
dc.contributor.author	Gusmao, Miguel Angelo Cavalheiro	pt_BR
dc.date.accessioned	2014-10-01T02:10:23Z	pt_BR
dc.date.issued	1995	pt_BR
dc.identifier.issn	0163-1829	pt_BR
dc.identifier.uri	http://hdl.handle.net/10183/104008	pt_BR
dc.description.abstract	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 approximations. We show that a metal-insulator transition is obtained above a criticai value of the on-site Coulomb interaction in a self-consistent evaluation of the oneparticle Green's function to one-loop order. A relationship with results in infinite dimensions is briefly discussed.	pt_BR
dc.format.mimetype	application/pdf	pt_BR
dc.language.iso	eng	pt_BR
dc.relation.ispartof	Physical Review. B, Condensed matter. New York. Vol. 52, n. 24 (Dec. 1995), p. 17135-17142	pt_BR
dc.rights	Open Access	en
dc.subject	Física da matéria condensada	pt_BR
dc.subject	Modelo de hubbard	pt_BR
dc.subject	Transição metal isolante	pt_BR
dc.subject	Sistemas de férmions	pt_BR
dc.subject	Metodos de funcoes de green	pt_BR
dc.subject	Teoria de perturbacao	pt_BR
dc.subject	Renormalizacao	pt_BR
dc.title	From the atomic limit to a metal-insulator transition in the hubbard model	pt_BR
dc.type	Artigo de periódico	pt_BR
dc.identifier.nrb	000142908	pt_BR
dc.type.origin	Estrangeiro	pt_BR

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