Quantum Circuits with Multiterminal Josephson-Andreev Junctions

Autores
Matute Cañadas, F. J.; Tosi, Leandro; Levy Yeyati, A.
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We explore superconducting quantum circuits where several leads are simultaneously connected beyond the tunneling regime, such that the fermionic structure of Andreev bound states in the resulting multiterminal Josephson junction influences the states of the full circuit. Using a simple model of single-channel contacts and a single level in the middle region, we discuss different circuit configurations where the leads are islands with finite capacitance and/or form loops with finite inductance. We find situations of practical interest where the circuits can be used to define noise-protected qubits, which map to the bifluxon and 0 − qubits in the tunneling regime. We also point out the subtleties of the gauge choice for a proper description of these quantum circuit dynamics.
Fil: Matute Cañadas, F. J.. Universidad Autónoma de Madrid; España
Fil: Tosi, Leandro. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Levy Yeyati, A.. Universidad Autónoma de Madrid; España
Materia
quantum circuits
multiterminal
protected qubit
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:11336/256267
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/256267
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Quantum Circuits with Multiterminal Josephson-Andreev JunctionsMatute Cañadas, F. J.Tosi, LeandroLevy Yeyati, A.quantum circuitsmultiterminalprotected qubithttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We explore superconducting quantum circuits where several leads are simultaneously connected beyond the tunneling regime, such that the fermionic structure of Andreev bound states in the resulting multiterminal Josephson junction influences the states of the full circuit. Using a simple model of single-channel contacts and a single level in the middle region, we discuss different circuit configurations where the leads are islands with finite capacitance and/or form loops with finite inductance. We find situations of practical interest where the circuits can be used to define noise-protected qubits, which map to the bifluxon and 0 − qubits in the tunneling regime. We also point out the subtleties of the gauge choice for a proper description of these quantum circuit dynamics.Fil: Matute Cañadas, F. J.. Universidad Autónoma de Madrid; EspañaFil: Tosi, Leandro. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Levy Yeyati, A.. Universidad Autónoma de Madrid; EspañaAmerican Physical Society2024-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/256267Matute Cañadas, F. J.; Tosi, Leandro; Levy Yeyati, A.; Quantum Circuits with Multiterminal Josephson-Andreev Junctions; American Physical Society; PRX Quantum; 5; 2; 5-2024; 1-252691-3399CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PRXQuantum.5.020340info:eu-repo/semantics/altIdentifier/doi/10.1103/PRXQuantum.5.020340info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:58:41Zoai:ri.conicet.gov.ar:11336/256267instacron: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:34982025-09-03 09:58:41.342CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Quantum Circuits with Multiterminal Josephson-Andreev Junctions
title Quantum Circuits with Multiterminal Josephson-Andreev Junctions
spellingShingle Quantum Circuits with Multiterminal Josephson-Andreev Junctions
Matute Cañadas, F. J.
quantum circuits
multiterminal
protected qubit
title_short Quantum Circuits with Multiterminal Josephson-Andreev Junctions
title_full Quantum Circuits with Multiterminal Josephson-Andreev Junctions
title_fullStr Quantum Circuits with Multiterminal Josephson-Andreev Junctions
title_full_unstemmed Quantum Circuits with Multiterminal Josephson-Andreev Junctions
title_sort Quantum Circuits with Multiterminal Josephson-Andreev Junctions
dc.creator.none.fl_str_mv Matute Cañadas, F. J.
Tosi, Leandro
Levy Yeyati, A.
author Matute Cañadas, F. J.
author_facet Matute Cañadas, F. J.
Tosi, Leandro
Levy Yeyati, A.
author_role author
author2 Tosi, Leandro
Levy Yeyati, A.
author2_role author
author
dc.subject.none.fl_str_mv quantum circuits
multiterminal
protected qubit
topic quantum circuits
multiterminal
protected qubit
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 explore superconducting quantum circuits where several leads are simultaneously connected beyond the tunneling regime, such that the fermionic structure of Andreev bound states in the resulting multiterminal Josephson junction influences the states of the full circuit. Using a simple model of single-channel contacts and a single level in the middle region, we discuss different circuit configurations where the leads are islands with finite capacitance and/or form loops with finite inductance. We find situations of practical interest where the circuits can be used to define noise-protected qubits, which map to the bifluxon and 0 − qubits in the tunneling regime. We also point out the subtleties of the gauge choice for a proper description of these quantum circuit dynamics.
Fil: Matute Cañadas, F. J.. Universidad Autónoma de Madrid; España
Fil: Tosi, Leandro. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Levy Yeyati, A.. Universidad Autónoma de Madrid; España
description We explore superconducting quantum circuits where several leads are simultaneously connected beyond the tunneling regime, such that the fermionic structure of Andreev bound states in the resulting multiterminal Josephson junction influences the states of the full circuit. Using a simple model of single-channel contacts and a single level in the middle region, we discuss different circuit configurations where the leads are islands with finite capacitance and/or form loops with finite inductance. We find situations of practical interest where the circuits can be used to define noise-protected qubits, which map to the bifluxon and 0 − qubits in the tunneling regime. We also point out the subtleties of the gauge choice for a proper description of these quantum circuit dynamics.
publishDate 2024
dc.date.none.fl_str_mv 2024-05
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/11336/256267
Matute Cañadas, F. J.; Tosi, Leandro; Levy Yeyati, A.; Quantum Circuits with Multiterminal Josephson-Andreev Junctions; American Physical Society; PRX Quantum; 5; 2; 5-2024; 1-25
2691-3399
CONICET Digital
CONICET
url http://hdl.handle.net/11336/256267
identifier_str_mv Matute Cañadas, F. J.; Tosi, Leandro; Levy Yeyati, A.; Quantum Circuits with Multiterminal Josephson-Andreev Junctions; American Physical Society; PRX Quantum; 5; 2; 5-2024; 1-25
2691-3399
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://link.aps.org/doi/10.1103/PRXQuantum.5.020340
info:eu-repo/semantics/altIdentifier/doi/10.1103/PRXQuantum.5.020340
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
_version_ 1842269534944231424
score 13.13397

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