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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/79237
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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 Técnicas2025-09-29T10:10:47Zoai: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:34982025-09-29 10:10:48.063CONICET 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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1844614000532258816 |
score |
13.070432 |