Transient and finite-size effects in transport properties of a quantum wire
- Autores
- Salvay, Mariano J.; Iucci, Carlos Aníbal; Naón, Carlos María
- Año de publicación
- 2011
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We study the time-dependent backscattered current produced in a quantum wire when a local barrier is suddenly switched on. Previous investigations are improved by taking into account the finite length of the device. We establish two different regimes in terms of the relationship between the energy scales associated with the voltage and the length of the system. We show how previous results, valid for wires of infinite length, are modified by the finite size of the system. In particular, our study reveals a rich pattern of temporal steps within which the current suffers an initial relaxation followed by temporary revivals. By employing both analytical and numerical methods we describe peculiar features of this structure. From this analysis one concludes that our results render a recently proposed approach to the determination of the Luttinger parameter, K, more realistic.
Facultad de Ciencias Exactas
Instituto de Física La Plata - Materia
-
Ciencias Exactas
Física
backscattered current
quantum wire
Luttinger parameter - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/126320
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Transient and finite-size effects in transport properties of a quantum wireSalvay, Mariano J.Iucci, Carlos AníbalNaón, Carlos MaríaCiencias ExactasFísicabackscattered currentquantum wireLuttinger parameterWe study the time-dependent backscattered current produced in a quantum wire when a local barrier is suddenly switched on. Previous investigations are improved by taking into account the finite length of the device. We establish two different regimes in terms of the relationship between the energy scales associated with the voltage and the length of the system. We show how previous results, valid for wires of infinite length, are modified by the finite size of the system. In particular, our study reveals a rich pattern of temporal steps within which the current suffers an initial relaxation followed by temporary revivals. By employing both analytical and numerical methods we describe peculiar features of this structure. From this analysis one concludes that our results render a recently proposed approach to the determination of the Luttinger parameter, K, more realistic.Facultad de Ciencias ExactasInstituto de Física La Plata2011-08info: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/10915/126320enginfo:eu-repo/semantics/altIdentifier/issn/1098-0121info:eu-repo/semantics/altIdentifier/issn/1550-235Xinfo:eu-repo/semantics/altIdentifier/arxiv/1108.0319info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevb.84.075482info: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:UNLP2025-09-29T11:30:18Zoai:sedici.unlp.edu.ar:10915/126320Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:30:18.34SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Transient and finite-size effects in transport properties of a quantum wire |
title |
Transient and finite-size effects in transport properties of a quantum wire |
spellingShingle |
Transient and finite-size effects in transport properties of a quantum wire Salvay, Mariano J. Ciencias Exactas Física backscattered current quantum wire Luttinger parameter |
title_short |
Transient and finite-size effects in transport properties of a quantum wire |
title_full |
Transient and finite-size effects in transport properties of a quantum wire |
title_fullStr |
Transient and finite-size effects in transport properties of a quantum wire |
title_full_unstemmed |
Transient and finite-size effects in transport properties of a quantum wire |
title_sort |
Transient and finite-size effects in transport properties of a quantum wire |
dc.creator.none.fl_str_mv |
Salvay, Mariano J. Iucci, Carlos Aníbal Naón, Carlos María |
author |
Salvay, Mariano J. |
author_facet |
Salvay, Mariano J. Iucci, Carlos Aníbal Naón, Carlos María |
author_role |
author |
author2 |
Iucci, Carlos Aníbal Naón, Carlos María |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Ciencias Exactas Física backscattered current quantum wire Luttinger parameter |
topic |
Ciencias Exactas Física backscattered current quantum wire Luttinger parameter |
dc.description.none.fl_txt_mv |
We study the time-dependent backscattered current produced in a quantum wire when a local barrier is suddenly switched on. Previous investigations are improved by taking into account the finite length of the device. We establish two different regimes in terms of the relationship between the energy scales associated with the voltage and the length of the system. We show how previous results, valid for wires of infinite length, are modified by the finite size of the system. In particular, our study reveals a rich pattern of temporal steps within which the current suffers an initial relaxation followed by temporary revivals. By employing both analytical and numerical methods we describe peculiar features of this structure. From this analysis one concludes that our results render a recently proposed approach to the determination of the Luttinger parameter, K, more realistic. Facultad de Ciencias Exactas Instituto de Física La Plata |
description |
We study the time-dependent backscattered current produced in a quantum wire when a local barrier is suddenly switched on. Previous investigations are improved by taking into account the finite length of the device. We establish two different regimes in terms of the relationship between the energy scales associated with the voltage and the length of the system. We show how previous results, valid for wires of infinite length, are modified by the finite size of the system. In particular, our study reveals a rich pattern of temporal steps within which the current suffers an initial relaxation followed by temporary revivals. By employing both analytical and numerical methods we describe peculiar features of this structure. From this analysis one concludes that our results render a recently proposed approach to the determination of the Luttinger parameter, K, more realistic. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-08 |
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/10915/126320 |
url |
http://sedici.unlp.edu.ar/handle/10915/126320 |
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/1108.0319 info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevb.84.075482 |
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 |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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application/pdf |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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