Ultrastrong Capacitive Coupling of Flux Qubits

9 pags., 4 figs., 3 apps.

Detalles Bibliográficos
Autores: Hita-Pérez, María, Jaumà, Gabriel, Pino, Manuel, García-Ripoll, Juan José
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/264702
Acceso en línea:http://hdl.handle.net/10261/264702
Access Level:acceso abierto
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spelling Ultrastrong Capacitive Coupling of Flux QubitsHita-Pérez, MaríaJaumà, GabrielPino, ManuelGarcía-Ripoll, Juan José9 pags., 4 figs., 3 apps.A flux qubit can interact strongly when it is capacitively coupled to other circuit elements. This interaction can be separated into two parts, one acting on the qubit subspaces and one in which excited states mediate the interaction. The first term dominates the interaction between the flux qubit and an LC resonator, leading to ultrastrong couplings of the form σy (a + a†), which complement the inductive σxi(a† − a) coupling. However, when coupling two flux qubits capacitively, all terms need to be taken into account, leading to complex nonstoquastic ultrastrong interaction of types σy1 σy2 , σz1σz2 , and σx1 σx2 . Our theory explains all these interactions, describing them in terms of general circuit properties—coupling capacitances, qubit gaps, inductive, Josephson and capacitive energies—that apply to a wide variety of circuits and flux qubit designs.This work is supported by the European Commission FET-Open project AVaQus GA 899561 and CSIC Quantum Technologies Platform PTI-001. Financial support by Fundación General CISC (Programa Comfuturo) is acknowledged. The numerical computations have been performed in the cluster Trueno of the CSIC.American Physical SocietyEuropean CommissionConsejo Superior de Investigaciones Científicas (España)Fundación General CSICConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2022202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/264702reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/899561http://dx.doi.org/10.1103/PhysRevApplied.17.014028Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2647022026-05-22T06:33:51Z
dc.title.none.fl_str_mv Ultrastrong Capacitive Coupling of Flux Qubits
title Ultrastrong Capacitive Coupling of Flux Qubits
spellingShingle Ultrastrong Capacitive Coupling of Flux Qubits
Hita-Pérez, María
title_short Ultrastrong Capacitive Coupling of Flux Qubits
title_full Ultrastrong Capacitive Coupling of Flux Qubits
title_fullStr Ultrastrong Capacitive Coupling of Flux Qubits
title_full_unstemmed Ultrastrong Capacitive Coupling of Flux Qubits
title_sort Ultrastrong Capacitive Coupling of Flux Qubits
dc.creator.none.fl_str_mv Hita-Pérez, María
Jaumà, Gabriel
Pino, Manuel
García-Ripoll, Juan José
author Hita-Pérez, María
author_facet Hita-Pérez, María
Jaumà, Gabriel
Pino, Manuel
García-Ripoll, Juan José
author_role author
author2 Jaumà, Gabriel
Pino, Manuel
García-Ripoll, Juan José
author2_role author
author
author
dc.contributor.none.fl_str_mv European Commission
Consejo Superior de Investigaciones Científicas (España)
Fundación General CSIC
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description 9 pags., 4 figs., 3 apps.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/264702
url http://hdl.handle.net/10261/264702
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/H2020/899561
http://dx.doi.org/10.1103/PhysRevApplied.17.014028
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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