Comment on "Conductance scaling in Kondo-correlated quantum dots: Role of level asymmetry and charging energy"

Autores
Aligia, Armando Angel
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In a recent work [Merker, Kirchner, Muñoz, and Costi, Phys. Rev. B 87, 165132 (2013)], the authors compared the results of numerical renormalization group (NRG) and a perturbative approach for the dependence on temperature T and magnetic field B of the conductance through a quantum dot described by the impurity Anderson model, for small T and B. We show that the equation used to extract the dependence on B from NRG results is incorrect out of the particle-hole symmetric case. As a consequence, in the Kondo regime, the correct NRG results have a weaker dependence on B and the disagreement between both approaches increases.
Fil: Aligia, Armando Angel. Comision Nacional de Energia Atomica. Gerencia del Area de Investigaciones y Aplicaciones no Nucleares. Gerencia de Fisica (CAB); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Quantum Dots
Kondo Regime
Magnetic Field
Pertubation Theory in U
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:11336/10992
Acceder
id CONICETDig_cde6618c9cb9d1d7894c348a16055839
oai_identifier_str oai:ri.conicet.gov.ar:11336/10992
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Comment on "Conductance scaling in Kondo-correlated quantum dots: Role of level asymmetry and charging energy"Aligia, Armando AngelQuantum DotsKondo RegimeMagnetic FieldPertubation Theory in Uhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In a recent work [Merker, Kirchner, Muñoz, and Costi, Phys. Rev. B 87, 165132 (2013)], the authors compared the results of numerical renormalization group (NRG) and a perturbative approach for the dependence on temperature T and magnetic field B of the conductance through a quantum dot described by the impurity Anderson model, for small T and B. We show that the equation used to extract the dependence on B from NRG results is incorrect out of the particle-hole symmetric case. As a consequence, in the Kondo regime, the correct NRG results have a weaker dependence on B and the disagreement between both approaches increases.Fil: Aligia, Armando Angel. Comision Nacional de Energia Atomica. Gerencia del Area de Investigaciones y Aplicaciones no Nucleares. Gerencia de Fisica (CAB); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaAmerican Physical Society2014-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/10992Aligia, Armando Angel; Comment on "Conductance scaling in Kondo-correlated quantum dots: Role of level asymmetry and charging energy"; American Physical Society; Physical Review B; 90; 7; 8-2014; 77-1012469-99502469-9969enginfo:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/prb/abstract/10.1103/PhysRevB.90.077101info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.90.077101info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:37:53Zoai:ri.conicet.gov.ar:11336/10992instacron: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 10:37:53.535CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Comment on "Conductance scaling in Kondo-correlated quantum dots: Role of level asymmetry and charging energy"
title Comment on "Conductance scaling in Kondo-correlated quantum dots: Role of level asymmetry and charging energy"
spellingShingle Comment on "Conductance scaling in Kondo-correlated quantum dots: Role of level asymmetry and charging energy"
Aligia, Armando Angel
Quantum Dots
Kondo Regime
Magnetic Field
Pertubation Theory in U
title_short Comment on "Conductance scaling in Kondo-correlated quantum dots: Role of level asymmetry and charging energy"
title_full Comment on "Conductance scaling in Kondo-correlated quantum dots: Role of level asymmetry and charging energy"
title_fullStr Comment on "Conductance scaling in Kondo-correlated quantum dots: Role of level asymmetry and charging energy"
title_full_unstemmed Comment on "Conductance scaling in Kondo-correlated quantum dots: Role of level asymmetry and charging energy"
title_sort Comment on "Conductance scaling in Kondo-correlated quantum dots: Role of level asymmetry and charging energy"
dc.creator.none.fl_str_mv Aligia, Armando Angel
author Aligia, Armando Angel
author_facet Aligia, Armando Angel
author_role author
dc.subject.none.fl_str_mv Quantum Dots
Kondo Regime
Magnetic Field
Pertubation Theory in U
topic Quantum Dots
Kondo Regime
Magnetic Field
Pertubation Theory in U
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In a recent work [Merker, Kirchner, Muñoz, and Costi, Phys. Rev. B 87, 165132 (2013)], the authors compared the results of numerical renormalization group (NRG) and a perturbative approach for the dependence on temperature T and magnetic field B of the conductance through a quantum dot described by the impurity Anderson model, for small T and B. We show that the equation used to extract the dependence on B from NRG results is incorrect out of the particle-hole symmetric case. As a consequence, in the Kondo regime, the correct NRG results have a weaker dependence on B and the disagreement between both approaches increases.
Fil: Aligia, Armando Angel. Comision Nacional de Energia Atomica. Gerencia del Area de Investigaciones y Aplicaciones no Nucleares. Gerencia de Fisica (CAB); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description In a recent work [Merker, Kirchner, Muñoz, and Costi, Phys. Rev. B 87, 165132 (2013)], the authors compared the results of numerical renormalization group (NRG) and a perturbative approach for the dependence on temperature T and magnetic field B of the conductance through a quantum dot described by the impurity Anderson model, for small T and B. We show that the equation used to extract the dependence on B from NRG results is incorrect out of the particle-hole symmetric case. As a consequence, in the Kondo regime, the correct NRG results have a weaker dependence on B and the disagreement between both approaches increases.
publishDate 2014
dc.date.none.fl_str_mv 2014-08
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/11336/10992
Aligia, Armando Angel; Comment on "Conductance scaling in Kondo-correlated quantum dots: Role of level asymmetry and charging energy"; American Physical Society; Physical Review B; 90; 7; 8-2014; 77-101
2469-9950
2469-9969
url http://hdl.handle.net/11336/10992
identifier_str_mv Aligia, Armando Angel; Comment on "Conductance scaling in Kondo-correlated quantum dots: Role of level asymmetry and charging energy"; American Physical Society; Physical Review B; 90; 7; 8-2014; 77-101
2469-9950
2469-9969
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/prb/abstract/10.1103/PhysRevB.90.077101
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.90.077101
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
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
_version_ 1844614400079560704
score 13.070432

Publicaciones similares