Transient effects in the backscattered current of a Luttinger liquid

Autores
Salvay, Mariano J.; Aita, Hugo Alberto; Naón, Carlos María
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the backscattered current in a Luttinger liquid in the presence of a pointlike weak impurity switched on at finite time, taking into account finite-temperature effects. We show how the well-known results for a static impurity are distorted. We derive a dimensionless parameter τR as a function of the electron-electron interaction and the temperature, such that for τR <1(>1) the switching process is relevant (irrelevant). Our results suggest the possibility of determining the value of the Luttinger parameter K through time measurements in transport experiments at fixed voltage.
Facultad de Ciencias Exactas
Materia
Física
Physics
Current (mathematics)
Voltage
Luttinger liquid
Dimensionless quantity
Condensed matter physics
Luttinger parameter
Transient (oscillation)
Function (mathematics)
Quantum mechanics
Impurity
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/126081
Acceder
id SEDICI_9a0676ec7f2099a2bae202ba780f2adb
oai_identifier_str oai:sedici.unlp.edu.ar:10915/126081
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Transient effects in the backscattered current of a Luttinger liquidSalvay, Mariano J.Aita, Hugo AlbertoNaón, Carlos MaríaFísicaPhysicsCurrent (mathematics)VoltageLuttinger liquidDimensionless quantityCondensed matter physicsLuttinger parameterTransient (oscillation)Function (mathematics)Quantum mechanicsImpurityWe study the backscattered current in a Luttinger liquid in the presence of a pointlike weak impurity switched on at finite time, taking into account finite-temperature effects. We show how the well-known results for a static impurity are distorted. We derive a dimensionless parameter τ<sub>R</sub> as a function of the electron-electron interaction and the temperature, such that for τ<sub>R</sub> <1(>1) the switching process is relevant (irrelevant). Our results suggest the possibility of determining the value of the Luttinger parameter K through time measurements in transport experiments at fixed voltage.Facultad de Ciencias Exactas2010-03-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/126081enginfo:eu-repo/semantics/altIdentifier/issn/1098-0121info:eu-repo/semantics/altIdentifier/issn/1550-235Xinfo:eu-repo/semantics/altIdentifier/arxiv/1002.3121info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevb.81.125406info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:30:13Zoai:sedici.unlp.edu.ar:10915/126081Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:30:14.265SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Transient effects in the backscattered current of a Luttinger liquid
title Transient effects in the backscattered current of a Luttinger liquid
spellingShingle Transient effects in the backscattered current of a Luttinger liquid
Salvay, Mariano J.
Física
Physics
Current (mathematics)
Voltage
Luttinger liquid
Dimensionless quantity
Condensed matter physics
Luttinger parameter
Transient (oscillation)
Function (mathematics)
Quantum mechanics
Impurity
title_short Transient effects in the backscattered current of a Luttinger liquid
title_full Transient effects in the backscattered current of a Luttinger liquid
title_fullStr Transient effects in the backscattered current of a Luttinger liquid
title_full_unstemmed Transient effects in the backscattered current of a Luttinger liquid
title_sort Transient effects in the backscattered current of a Luttinger liquid
dc.creator.none.fl_str_mv Salvay, Mariano J.
Aita, Hugo Alberto
Naón, Carlos María
author Salvay, Mariano J.
author_facet Salvay, Mariano J.
Aita, Hugo Alberto
Naón, Carlos María
author_role author
author2 Aita, Hugo Alberto
Naón, Carlos María
author2_role author
author
dc.subject.none.fl_str_mv Física
Physics
Current (mathematics)
Voltage
Luttinger liquid
Dimensionless quantity
Condensed matter physics
Luttinger parameter
Transient (oscillation)
Function (mathematics)
Quantum mechanics
Impurity
topic Física
Physics
Current (mathematics)
Voltage
Luttinger liquid
Dimensionless quantity
Condensed matter physics
Luttinger parameter
Transient (oscillation)
Function (mathematics)
Quantum mechanics
Impurity
dc.description.none.fl_txt_mv We study the backscattered current in a Luttinger liquid in the presence of a pointlike weak impurity switched on at finite time, taking into account finite-temperature effects. We show how the well-known results for a static impurity are distorted. We derive a dimensionless parameter τ<sub>R</sub> as a function of the electron-electron interaction and the temperature, such that for τ<sub>R</sub> <1(>1) the switching process is relevant (irrelevant). Our results suggest the possibility of determining the value of the Luttinger parameter K through time measurements in transport experiments at fixed voltage.
Facultad de Ciencias Exactas
description We study the backscattered current in a Luttinger liquid in the presence of a pointlike weak impurity switched on at finite time, taking into account finite-temperature effects. We show how the well-known results for a static impurity are distorted. We derive a dimensionless parameter τ<sub>R</sub> as a function of the electron-electron interaction and the temperature, such that for τ<sub>R</sub> <1(>1) the switching process is relevant (irrelevant). Our results suggest the possibility of determining the value of the Luttinger parameter K through time measurements in transport experiments at fixed voltage.
publishDate 2010
dc.date.none.fl_str_mv 2010-03-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/126081
url http://sedici.unlp.edu.ar/handle/10915/126081
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1098-0121
info:eu-repo/semantics/altIdentifier/issn/1550-235X
info:eu-repo/semantics/altIdentifier/arxiv/1002.3121
info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevb.81.125406
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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