Topological quantum phase transition between Fermi liquid phases in an Anderson impurity model

Autores
Blesio, Germán Gabriel; Manuel, Luis Oscar; Roura Bas, Pablo Gines; Aligia, Armando Ángel
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study a generalized Anderson model that mixes two localized configurations-one formed by two degenerate doublets and the other by a triplet with single-ion anisotropy DSz2-by means of two degenerate conduction channels. The model has been derived for a single Ni impurity embedded into an O-doped Au chain. Using the numerical renormalization group, we find a topological quantum phase transition, at a finite value Dc, between two regular Fermi liquid phases of high (low) conductance and topological number 2IL/π=0 (+1) for DDc), where IL is the well-known Luttinger integral. At finite temperature the two phases are separated by a non-Fermi liquid phase with fractional impurity entropy 12ln2 and other properties which are similar to those of the two-channel Kondo model.
Fil: Blesio, Germán Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Manuel, Luis Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Roura Bas, Pablo Gines. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Aligia, Armando Ángel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Materia
generalized Anderson model
topological quantum phase transition
Luttinger integral
single-ion anisotropy
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:11336/102312
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Topological quantum phase transition between Fermi liquid phases in an Anderson impurity modelBlesio, Germán GabrielManuel, Luis OscarRoura Bas, Pablo GinesAligia, Armando Ángelgeneralized Anderson modeltopological quantum phase transitionLuttinger integralsingle-ion anisotropyhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study a generalized Anderson model that mixes two localized configurations-one formed by two degenerate doublets and the other by a triplet with single-ion anisotropy DSz2-by means of two degenerate conduction channels. The model has been derived for a single Ni impurity embedded into an O-doped Au chain. Using the numerical renormalization group, we find a topological quantum phase transition, at a finite value Dc, between two regular Fermi liquid phases of high (low) conductance and topological number 2IL/π=0 (+1) for DDc), where IL is the well-known Luttinger integral. At finite temperature the two phases are separated by a non-Fermi liquid phase with fractional impurity entropy 12ln2 and other properties which are similar to those of the two-channel Kondo model.Fil: Blesio, Germán Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; ArgentinaFil: Manuel, Luis Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; ArgentinaFil: Roura Bas, Pablo Gines. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Aligia, Armando Ángel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaAmerican Physical Society2018-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/102312Blesio, Germán Gabriel; Manuel, Luis Oscar; Roura Bas, Pablo Gines; Aligia, Armando Ángel; Topological quantum phase transition between Fermi liquid phases in an Anderson impurity model; American Physical Society; Physical Review B; 98; 19; 11-2018; 1-15; 1954352469-9950CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.98.195435info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.98.195435info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1805.11518info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:20:13Zoai:ri.conicet.gov.ar:11336/102312instacron: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:34982025-10-22 11:20:14.175CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Topological quantum phase transition between Fermi liquid phases in an Anderson impurity model
title Topological quantum phase transition between Fermi liquid phases in an Anderson impurity model
spellingShingle Topological quantum phase transition between Fermi liquid phases in an Anderson impurity model
Blesio, Germán Gabriel
generalized Anderson model
topological quantum phase transition
Luttinger integral
single-ion anisotropy
title_short Topological quantum phase transition between Fermi liquid phases in an Anderson impurity model
title_full Topological quantum phase transition between Fermi liquid phases in an Anderson impurity model
title_fullStr Topological quantum phase transition between Fermi liquid phases in an Anderson impurity model
title_full_unstemmed Topological quantum phase transition between Fermi liquid phases in an Anderson impurity model
title_sort Topological quantum phase transition between Fermi liquid phases in an Anderson impurity model
dc.creator.none.fl_str_mv Blesio, Germán Gabriel
Manuel, Luis Oscar
Roura Bas, Pablo Gines
Aligia, Armando Ángel
author Blesio, Germán Gabriel
author_facet Blesio, Germán Gabriel
Manuel, Luis Oscar
Roura Bas, Pablo Gines
Aligia, Armando Ángel
author_role author
author2 Manuel, Luis Oscar
Roura Bas, Pablo Gines
Aligia, Armando Ángel
author2_role author
author
author
dc.subject.none.fl_str_mv generalized Anderson model
topological quantum phase transition
Luttinger integral
single-ion anisotropy
topic generalized Anderson model
topological quantum phase transition
Luttinger integral
single-ion anisotropy
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 a generalized Anderson model that mixes two localized configurations-one formed by two degenerate doublets and the other by a triplet with single-ion anisotropy DSz2-by means of two degenerate conduction channels. The model has been derived for a single Ni impurity embedded into an O-doped Au chain. Using the numerical renormalization group, we find a topological quantum phase transition, at a finite value Dc, between two regular Fermi liquid phases of high (low) conductance and topological number 2IL/π=0 (+1) for DDc), where IL is the well-known Luttinger integral. At finite temperature the two phases are separated by a non-Fermi liquid phase with fractional impurity entropy 12ln2 and other properties which are similar to those of the two-channel Kondo model.
Fil: Blesio, Germán Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Manuel, Luis Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Roura Bas, Pablo Gines. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Aligia, Armando Ángel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
description We study a generalized Anderson model that mixes two localized configurations-one formed by two degenerate doublets and the other by a triplet with single-ion anisotropy DSz2-by means of two degenerate conduction channels. The model has been derived for a single Ni impurity embedded into an O-doped Au chain. Using the numerical renormalization group, we find a topological quantum phase transition, at a finite value Dc, between two regular Fermi liquid phases of high (low) conductance and topological number 2IL/π=0 (+1) for DDc), where IL is the well-known Luttinger integral. At finite temperature the two phases are separated by a non-Fermi liquid phase with fractional impurity entropy 12ln2 and other properties which are similar to those of the two-channel Kondo model.
publishDate 2018
dc.date.none.fl_str_mv 2018-11
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/11336/102312
Blesio, Germán Gabriel; Manuel, Luis Oscar; Roura Bas, Pablo Gines; Aligia, Armando Ángel; Topological quantum phase transition between Fermi liquid phases in an Anderson impurity model; American Physical Society; Physical Review B; 98; 19; 11-2018; 1-15; 195435
2469-9950
CONICET Digital
CONICET
url http://hdl.handle.net/11336/102312
identifier_str_mv Blesio, Germán Gabriel; Manuel, Luis Oscar; Roura Bas, Pablo Gines; Aligia, Armando Ángel; Topological quantum phase transition between Fermi liquid phases in an Anderson impurity model; American Physical Society; Physical Review B; 98; 19; 11-2018; 1-15; 195435
2469-9950
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.98.195435
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.98.195435
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1805.11518
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
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 12.982451

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