Nonperturbative approach to backscattering off a dynamical impurity in one-dimensional Fermi systems

Autores
Barci, Daniel G.; Moriconi, Luca; Moriconi, M.; Naón, Carlos María; Salvay, Mariano J.
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We investigate the problem of backscattering off a time-dependent impurity in a one-dimensional electron gas. By combining the Schwinger-Keldysh method with an adiabatic approximation in order to deal with the corresponding out of equilibrium Dirac equation, we compute the total energy density (TED) of the system. We show how the free fermion TED is distorted by the backscattering amplitude and the geometry of the impurity.
Facultad de Ciencias Exactas
Instituto de Física La Plata
Materia
Ciencias Exactas
Física
Backscattering
Physics
Schwinger-Keldysh method
Total energy density (TED)
Fermion
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:10915/125871
Acceder
id SEDICI_2c92793bae51404775b901a4eb52162c
oai_identifier_str oai:sedici.unlp.edu.ar:10915/125871
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Nonperturbative approach to backscattering off a dynamical impurity in one-dimensional Fermi systemsBarci, Daniel G.Moriconi, LucaMoriconi, M.Naón, Carlos MaríaSalvay, Mariano J.Ciencias ExactasFísicaBackscatteringPhysicsSchwinger-Keldysh methodTotal energy density (TED)FermionWe investigate the problem of backscattering off a time-dependent impurity in a one-dimensional electron gas. By combining the Schwinger-Keldysh method with an adiabatic approximation in order to deal with the corresponding out of equilibrium Dirac equation, we compute the total energy density (TED) of the system. We show how the free fermion TED is distorted by the backscattering amplitude and the geometry of the impurity.Facultad de Ciencias ExactasInstituto de Física La Plata2005-12info: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/10915/125871enginfo:eu-repo/semantics/altIdentifier/issn/1098-0121info:eu-repo/semantics/altIdentifier/issn/1550-235Xinfo:eu-repo/semantics/altIdentifier/arxiv/cond-mat/0503395info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevb.72.235112info: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:UNLP2025-09-29T11:30:23Zoai:sedici.unlp.edu.ar:10915/125871Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:30:24.048SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Nonperturbative approach to backscattering off a dynamical impurity in one-dimensional Fermi systems
title Nonperturbative approach to backscattering off a dynamical impurity in one-dimensional Fermi systems
spellingShingle Nonperturbative approach to backscattering off a dynamical impurity in one-dimensional Fermi systems
Barci, Daniel G.
Ciencias Exactas
Física
Backscattering
Physics
Schwinger-Keldysh method
Total energy density (TED)
Fermion
title_short Nonperturbative approach to backscattering off a dynamical impurity in one-dimensional Fermi systems
title_full Nonperturbative approach to backscattering off a dynamical impurity in one-dimensional Fermi systems
title_fullStr Nonperturbative approach to backscattering off a dynamical impurity in one-dimensional Fermi systems
title_full_unstemmed Nonperturbative approach to backscattering off a dynamical impurity in one-dimensional Fermi systems
title_sort Nonperturbative approach to backscattering off a dynamical impurity in one-dimensional Fermi systems
dc.creator.none.fl_str_mv Barci, Daniel G.
Moriconi, Luca
Moriconi, M.
Naón, Carlos María
Salvay, Mariano J.
author Barci, Daniel G.
author_facet Barci, Daniel G.
Moriconi, Luca
Moriconi, M.
Naón, Carlos María
Salvay, Mariano J.
author_role author
author2 Moriconi, Luca
Moriconi, M.
Naón, Carlos María
Salvay, Mariano J.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
Backscattering
Physics
Schwinger-Keldysh method
Total energy density (TED)
Fermion
topic Ciencias Exactas
Física
Backscattering
Physics
Schwinger-Keldysh method
Total energy density (TED)
Fermion
dc.description.none.fl_txt_mv We investigate the problem of backscattering off a time-dependent impurity in a one-dimensional electron gas. By combining the Schwinger-Keldysh method with an adiabatic approximation in order to deal with the corresponding out of equilibrium Dirac equation, we compute the total energy density (TED) of the system. We show how the free fermion TED is distorted by the backscattering amplitude and the geometry of the impurity.
Facultad de Ciencias Exactas
Instituto de Física La Plata
description We investigate the problem of backscattering off a time-dependent impurity in a one-dimensional electron gas. By combining the Schwinger-Keldysh method with an adiabatic approximation in order to deal with the corresponding out of equilibrium Dirac equation, we compute the total energy density (TED) of the system. We show how the free fermion TED is distorted by the backscattering amplitude and the geometry of the impurity.
publishDate 2005
dc.date.none.fl_str_mv 2005-12
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/10915/125871
url http://sedici.unlp.edu.ar/handle/10915/125871
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/cond-mat/0503395
info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevb.72.235112
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
_version_ 1844616183731453952
score 13.070432

Publicaciones similares