Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation

Autores
Naón, Carlos María; Salvay, Mariano J.
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We investigate the problem of backscattering off a time-dependent and spatially extended barrier in a one-dimensional noninteracting electron gas. By performing a perturbative expansion in the backscattering amplitude, we compute the total energy density of the system. We show how the free fermion spectrum and the conductance of the system are affected by the interplay between dynamical and geometrical properties of the impurity.
Instituto de Física La Plata
Materia
Física
Quantum tunnelling
Physics
Conductance
Amplitude
Fermi gamma-ray space telescope
Condensed matter physics
Quantum electrodynamics
Computation
Fermion
Impurity
Fermi gas
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:10915/125843
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/125843
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computationNaón, Carlos MaríaSalvay, Mariano J.FísicaQuantum tunnellingPhysicsConductanceAmplitudeFermi gamma-ray space telescopeCondensed matter physicsQuantum electrodynamicsComputationFermionImpurityFermi gasWe investigate the problem of backscattering off a time-dependent and spatially extended barrier in a one-dimensional noninteracting electron gas. By performing a perturbative expansion in the backscattering amplitude, we compute the total energy density of the system. We show how the free fermion spectrum and the conductance of the system are affected by the interplay between dynamical and geometrical properties of the impurity.Instituto de Física La Plata2007-03info: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/10915/125843enginfo:eu-repo/semantics/altIdentifier/issn/1098-0121info:eu-repo/semantics/altIdentifier/issn/1550-235xinfo:eu-repo/semantics/altIdentifier/arxiv/cond-mat/0610374info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevb.75.113102info: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:UNLP2025-10-15T11:22:11Zoai:sedici.unlp.edu.ar:10915/125843Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:22:12.227SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation
title Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation
spellingShingle Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation
Naón, Carlos María
Física
Quantum tunnelling
Physics
Conductance
Amplitude
Fermi gamma-ray space telescope
Condensed matter physics
Quantum electrodynamics
Computation
Fermion
Impurity
Fermi gas
title_short Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation
title_full Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation
title_fullStr Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation
title_full_unstemmed Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation
title_sort Backscattering off a dynamical impurity in one-dimensional Fermi systems: a perturbative computation
dc.creator.none.fl_str_mv Naón, Carlos María
Salvay, Mariano J.
author Naón, Carlos María
author_facet Naón, Carlos María
Salvay, Mariano J.
author_role author
author2 Salvay, Mariano J.
author2_role author
dc.subject.none.fl_str_mv Física
Quantum tunnelling
Physics
Conductance
Amplitude
Fermi gamma-ray space telescope
Condensed matter physics
Quantum electrodynamics
Computation
Fermion
Impurity
Fermi gas
topic Física
Quantum tunnelling
Physics
Conductance
Amplitude
Fermi gamma-ray space telescope
Condensed matter physics
Quantum electrodynamics
Computation
Fermion
Impurity
Fermi gas
dc.description.none.fl_txt_mv We investigate the problem of backscattering off a time-dependent and spatially extended barrier in a one-dimensional noninteracting electron gas. By performing a perturbative expansion in the backscattering amplitude, we compute the total energy density of the system. We show how the free fermion spectrum and the conductance of the system are affected by the interplay between dynamical and geometrical properties of the impurity.
Instituto de Física La Plata
description We investigate the problem of backscattering off a time-dependent and spatially extended barrier in a one-dimensional noninteracting electron gas. By performing a perturbative expansion in the backscattering amplitude, we compute the total energy density of the system. We show how the free fermion spectrum and the conductance of the system are affected by the interplay between dynamical and geometrical properties of the impurity.
publishDate 2007
dc.date.none.fl_str_mv 2007-03
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/10915/125843
url http://sedici.unlp.edu.ar/handle/10915/125843
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/0610374
info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevb.75.113102
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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