Metal-insulator transition in correlated systems: A new numerical approach

Autores
García, D. J.; Miranda, E.; Hallberg, Karen Astrid; Rozenberg, Marcelo Javier
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the Mott transition in the Hubbard model within the dynamical mean field theory approach where the density matrix renormalization group method is used to solve its self-consistent equations. The DMRG technique solves the associated impurity problem. We obtain accurate estimates of the critical values of the metal-insulator transitions. For the Hubbard model away from the particle-hole symmetric case we focus our study on the region of strong interactions and finite doping where two solutions coexist. In this region we demonstrate the capabilities of this method by obtaining the frequency-dependent optical conductivity spectra. With this algorithm, more complex models having a larger number of degrees of freedom can be considered and finite-size effects can be minimized.
Fil: García, D. J.. Universidade Estadual de Campinas; Brasil
Fil: Miranda, E.. Universidade Estadual de Campinas; Brasil
Fil: Hallberg, Karen Astrid. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Rozenberg, Marcelo Javier. Université Paris Sud; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Materia
Density Matrix Renormalization Group
Dynamical Mean Field Theory
Mott Transition
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/69911
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Metal-insulator transition in correlated systems: A new numerical approachGarcía, D. J.Miranda, E.Hallberg, Karen AstridRozenberg, Marcelo JavierDensity Matrix Renormalization GroupDynamical Mean Field TheoryMott Transitionhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the Mott transition in the Hubbard model within the dynamical mean field theory approach where the density matrix renormalization group method is used to solve its self-consistent equations. The DMRG technique solves the associated impurity problem. We obtain accurate estimates of the critical values of the metal-insulator transitions. For the Hubbard model away from the particle-hole symmetric case we focus our study on the region of strong interactions and finite doping where two solutions coexist. In this region we demonstrate the capabilities of this method by obtaining the frequency-dependent optical conductivity spectra. With this algorithm, more complex models having a larger number of degrees of freedom can be considered and finite-size effects can be minimized.Fil: García, D. J.. Universidade Estadual de Campinas; BrasilFil: Miranda, E.. Universidade Estadual de Campinas; BrasilFil: Hallberg, Karen Astrid. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Rozenberg, Marcelo Javier. Université Paris Sud; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaElsevier Science2007-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/69911García, D. J.; Miranda, E.; Hallberg, Karen Astrid; Rozenberg, Marcelo Javier; Metal-insulator transition in correlated systems: A new numerical approach; Elsevier Science; Physica B: Condensed Matter; 398; 2; 9-2007; 407-4110921-4526CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.physb.2007.04.049info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0921452607003274info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:31:02Zoai:ri.conicet.gov.ar:11336/69911instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:31:02.818CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Metal-insulator transition in correlated systems: A new numerical approach
title Metal-insulator transition in correlated systems: A new numerical approach
spellingShingle Metal-insulator transition in correlated systems: A new numerical approach
García, D. J.
Density Matrix Renormalization Group
Dynamical Mean Field Theory
Mott Transition
title_short Metal-insulator transition in correlated systems: A new numerical approach
title_full Metal-insulator transition in correlated systems: A new numerical approach
title_fullStr Metal-insulator transition in correlated systems: A new numerical approach
title_full_unstemmed Metal-insulator transition in correlated systems: A new numerical approach
title_sort Metal-insulator transition in correlated systems: A new numerical approach
dc.creator.none.fl_str_mv García, D. J.
Miranda, E.
Hallberg, Karen Astrid
Rozenberg, Marcelo Javier
author García, D. J.
author_facet García, D. J.
Miranda, E.
Hallberg, Karen Astrid
Rozenberg, Marcelo Javier
author_role author
author2 Miranda, E.
Hallberg, Karen Astrid
Rozenberg, Marcelo Javier
author2_role author
author
author
dc.subject.none.fl_str_mv Density Matrix Renormalization Group
Dynamical Mean Field Theory
Mott Transition
topic Density Matrix Renormalization Group
Dynamical Mean Field Theory
Mott Transition
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We study the Mott transition in the Hubbard model within the dynamical mean field theory approach where the density matrix renormalization group method is used to solve its self-consistent equations. The DMRG technique solves the associated impurity problem. We obtain accurate estimates of the critical values of the metal-insulator transitions. For the Hubbard model away from the particle-hole symmetric case we focus our study on the region of strong interactions and finite doping where two solutions coexist. In this region we demonstrate the capabilities of this method by obtaining the frequency-dependent optical conductivity spectra. With this algorithm, more complex models having a larger number of degrees of freedom can be considered and finite-size effects can be minimized.
Fil: García, D. J.. Universidade Estadual de Campinas; Brasil
Fil: Miranda, E.. Universidade Estadual de Campinas; Brasil
Fil: Hallberg, Karen Astrid. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Rozenberg, Marcelo Javier. Université Paris Sud; Francia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
description We study the Mott transition in the Hubbard model within the dynamical mean field theory approach where the density matrix renormalization group method is used to solve its self-consistent equations. The DMRG technique solves the associated impurity problem. We obtain accurate estimates of the critical values of the metal-insulator transitions. For the Hubbard model away from the particle-hole symmetric case we focus our study on the region of strong interactions and finite doping where two solutions coexist. In this region we demonstrate the capabilities of this method by obtaining the frequency-dependent optical conductivity spectra. With this algorithm, more complex models having a larger number of degrees of freedom can be considered and finite-size effects can be minimized.
publishDate 2007
dc.date.none.fl_str_mv 2007-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/69911
García, D. J.; Miranda, E.; Hallberg, Karen Astrid; Rozenberg, Marcelo Javier; Metal-insulator transition in correlated systems: A new numerical approach; Elsevier Science; Physica B: Condensed Matter; 398; 2; 9-2007; 407-411
0921-4526
CONICET Digital
CONICET
url http://hdl.handle.net/11336/69911
identifier_str_mv García, D. J.; Miranda, E.; Hallberg, Karen Astrid; Rozenberg, Marcelo Javier; Metal-insulator transition in correlated systems: A new numerical approach; Elsevier Science; Physica B: Condensed Matter; 398; 2; 9-2007; 407-411
0921-4526
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physb.2007.04.049
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0921452607003274
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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