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

Detalhes bibliográficos
Autor(a) principal: Craco, Luis
Data de Publicação: 1995
Outros Autores: Gusmao, Miguel Angelo Cavalheiro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/104008
Resumo: 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.
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spelling Craco, LuisGusmao, Miguel Angelo Cavalheiro2014-10-01T02:10:23Z19950163-1829http://hdl.handle.net/10183/104008000142908Starting 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.application/pdfengPhysical Review. B, Condensed matter. New York. Vol. 52, n. 24 (Dec. 1995), p. 17135-17142Física da matéria condensadaModelo de hubbardTransição metal isolanteSistemas de férmionsMetodos de funcoes de greenTeoria de perturbacaoRenormalizacaoFrom the atomic limit to a metal-insulator transition in the hubbard modelEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000142908.pdf000142908.pdfTexto completo (inglês)application/pdf1008705http://www.lume.ufrgs.br/bitstream/10183/104008/1/000142908.pdf790ae4b53e5a1d55ab75d1f977e8cffdMD51TEXT000142908.pdf.txt000142908.pdf.txtExtracted Texttext/plain31445http://www.lume.ufrgs.br/bitstream/10183/104008/2/000142908.pdf.txt56a43b654ce0507e6c31ee5e50b7dda5MD52THUMBNAIL000142908.pdf.jpg000142908.pdf.jpgGenerated Thumbnailimage/jpeg2105http://www.lume.ufrgs.br/bitstream/10183/104008/3/000142908.pdf.jpg0c4d4c848c51f6d60d4b624fec46a070MD5310183/1040082022-02-22 04:53:02.392951oai:www.lume.ufrgs.br:10183/104008Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2022-02-22T07:53:02Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv From the atomic limit to a metal-insulator transition in the hubbard model
title From the atomic limit to a metal-insulator transition in the hubbard model
spellingShingle From the atomic limit to a metal-insulator transition in the hubbard model
Craco, Luis
Física da matéria condensada
Modelo de hubbard
Transição metal isolante
Sistemas de férmions
Metodos de funcoes de green
Teoria de perturbacao
Renormalizacao
title_short From the atomic limit to a metal-insulator transition in the hubbard model
title_full From the atomic limit to a metal-insulator transition in the hubbard model
title_fullStr From the atomic limit to a metal-insulator transition in the hubbard model
title_full_unstemmed From the atomic limit to a metal-insulator transition in the hubbard model
title_sort From the atomic limit to a metal-insulator transition in the hubbard model
author Craco, Luis
author_facet Craco, Luis
Gusmao, Miguel Angelo Cavalheiro
author_role author
author2 Gusmao, Miguel Angelo Cavalheiro
author2_role author
dc.contributor.author.fl_str_mv Craco, Luis
Gusmao, Miguel Angelo Cavalheiro
dc.subject.por.fl_str_mv Física da matéria condensada
Modelo de hubbard
Transição metal isolante
Sistemas de férmions
Metodos de funcoes de green
Teoria de perturbacao
Renormalizacao
topic Física da matéria condensada
Modelo de hubbard
Transição metal isolante
Sistemas de férmions
Metodos de funcoes de green
Teoria de perturbacao
Renormalizacao
description 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.
publishDate 1995
dc.date.issued.fl_str_mv 1995
dc.date.accessioned.fl_str_mv 2014-10-01T02:10:23Z
dc.type.driver.fl_str_mv Estrangeiro
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/104008
dc.identifier.issn.pt_BR.fl_str_mv 0163-1829
dc.identifier.nrb.pt_BR.fl_str_mv 000142908
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Physical Review. B, Condensed matter. New York. Vol. 52, n. 24 (Dec. 1995), p. 17135-17142
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