Controlled dephasing of Andreev states in superconducting quantum point contacts

Autores
Desposito, Marcelo Arnaldo; Levy Yeyati, Alfredo
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We have studied the relaxation and dephasing processes in a superconducting quantum point contact induced by the interaction with an electromagnetic environment. Based on a density matrix approach we obtain the rates for the dissipative dynamics as function of the transmission, the phase difference on the contact, and the external impedance. Our calculation allows us to determine the appropriate range of parameters for the observation of coherent oscillations in the current through the contact.
Fil: Desposito, Marcelo Arnaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Levy Yeyati, Alfredo. Universidad Autónoma de Madrid; España
Materia
SUPERCONDUCTING QUANTUM POINT CONTACT
ANDREEV STATES
TWO LEVEL SYSTEM
GENERALIZED MASTER EQUATION
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:11336/79237
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/79237
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network_name_str CONICET Digital (CONICET)
spelling Controlled dephasing of Andreev states in superconducting quantum point contactsDesposito, Marcelo ArnaldoLevy Yeyati, AlfredoSUPERCONDUCTING QUANTUM POINT CONTACTANDREEV STATESTWO LEVEL SYSTEMGENERALIZED MASTER EQUATIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We have studied the relaxation and dephasing processes in a superconducting quantum point contact induced by the interaction with an electromagnetic environment. Based on a density matrix approach we obtain the rates for the dissipative dynamics as function of the transmission, the phase difference on the contact, and the external impedance. Our calculation allows us to determine the appropriate range of parameters for the observation of coherent oscillations in the current through the contact.Fil: Desposito, Marcelo Arnaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Levy Yeyati, Alfredo. Universidad Autónoma de Madrid; EspañaAmerican Physical Society2001-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/79237Desposito, Marcelo Arnaldo; Levy Yeyati, Alfredo; Controlled dephasing of Andreev states in superconducting quantum point contacts; American Physical Society; Physical Review B; 64; 14; 9-2001; 1-40163-1829CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.64.140511info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.64.140511info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:40:45Zoai:ri.conicet.gov.ar:11336/79237instacron: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:34982025-10-22 11:40:45.469CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Controlled dephasing of Andreev states in superconducting quantum point contacts
title Controlled dephasing of Andreev states in superconducting quantum point contacts
spellingShingle Controlled dephasing of Andreev states in superconducting quantum point contacts
Desposito, Marcelo Arnaldo
SUPERCONDUCTING QUANTUM POINT CONTACT
ANDREEV STATES
TWO LEVEL SYSTEM
GENERALIZED MASTER EQUATION
title_short Controlled dephasing of Andreev states in superconducting quantum point contacts
title_full Controlled dephasing of Andreev states in superconducting quantum point contacts
title_fullStr Controlled dephasing of Andreev states in superconducting quantum point contacts
title_full_unstemmed Controlled dephasing of Andreev states in superconducting quantum point contacts
title_sort Controlled dephasing of Andreev states in superconducting quantum point contacts
dc.creator.none.fl_str_mv Desposito, Marcelo Arnaldo
Levy Yeyati, Alfredo
author Desposito, Marcelo Arnaldo
author_facet Desposito, Marcelo Arnaldo
Levy Yeyati, Alfredo
author_role author
author2 Levy Yeyati, Alfredo
author2_role author
dc.subject.none.fl_str_mv SUPERCONDUCTING QUANTUM POINT CONTACT
ANDREEV STATES
TWO LEVEL SYSTEM
GENERALIZED MASTER EQUATION
topic SUPERCONDUCTING QUANTUM POINT CONTACT
ANDREEV STATES
TWO LEVEL SYSTEM
GENERALIZED MASTER EQUATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We have studied the relaxation and dephasing processes in a superconducting quantum point contact induced by the interaction with an electromagnetic environment. Based on a density matrix approach we obtain the rates for the dissipative dynamics as function of the transmission, the phase difference on the contact, and the external impedance. Our calculation allows us to determine the appropriate range of parameters for the observation of coherent oscillations in the current through the contact.
Fil: Desposito, Marcelo Arnaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Levy Yeyati, Alfredo. Universidad Autónoma de Madrid; España
description We have studied the relaxation and dephasing processes in a superconducting quantum point contact induced by the interaction with an electromagnetic environment. Based on a density matrix approach we obtain the rates for the dissipative dynamics as function of the transmission, the phase difference on the contact, and the external impedance. Our calculation allows us to determine the appropriate range of parameters for the observation of coherent oscillations in the current through the contact.
publishDate 2001
dc.date.none.fl_str_mv 2001-09
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/11336/79237
Desposito, Marcelo Arnaldo; Levy Yeyati, Alfredo; Controlled dephasing of Andreev states in superconducting quantum point contacts; American Physical Society; Physical Review B; 64; 14; 9-2001; 1-4
0163-1829
CONICET Digital
CONICET
url http://hdl.handle.net/11336/79237
identifier_str_mv Desposito, Marcelo Arnaldo; Levy Yeyati, Alfredo; Controlled dephasing of Andreev states in superconducting quantum point contacts; American Physical Society; Physical Review B; 64; 14; 9-2001; 1-4
0163-1829
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.64.140511
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.64.140511
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
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score 12.982451

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