PT-symmetric circuit QED

A parity-time (PT)-symmetric system emerging from a quantum dynamics is highly desirable in order to understand the possible implications of PT symmetry in the next generation of quantum technologies. In this work, we address this need by proposing and studying a circuit-QED architecture that consis...

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Autores: Quijandria, F., Naether, U., Ozdemir, S.K., Nori, F., Zueco, D.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:75703
Acceso en línea:http://zaguan.unizar.es/record/75703
Access Level:acceso abierto
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spelling PT-symmetric circuit QEDQuijandria, F.Naether, U.Ozdemir, S.K.Nori, F.Zueco, D.A parity-time (PT)-symmetric system emerging from a quantum dynamics is highly desirable in order to understand the possible implications of PT symmetry in the next generation of quantum technologies. In this work, we address this need by proposing and studying a circuit-QED architecture that consists of two coupled resonators and two qubits (each coupled to one resonator). By means of external driving fields on the qubits, we are able to tune gains and losses in the resonators. Starting with the quantum dynamics of this system, we show the emergence of the PT symmetry via the selection of both driving amplitudes and frequencies. We engineer the system such that a non-number-conserving dipole-dipole interaction emerges, introducing an instability at large coupling strengths. The PT symmetry and its breaking, as well as the predicted instability in this circuit-QED system, can be observed in a transmission experiment.2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://zaguan.unizar.es/record/75703reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/grantAgreement/ES/DGA/FENOL-GROUPinfo:eu-repo/grantAgreement/ES/MINECO/FIS2014-55867info:eu-repo/grantAgreement/ES/MINECO/MAT2014-53432-C5-1-Rinfo:eu-repo/semantics/openAccessoai:zaguan.unizar.es:757032026-05-29T13:59:51Z
dc.title.none.fl_str_mv PT-symmetric circuit QED
title PT-symmetric circuit QED
spellingShingle PT-symmetric circuit QED
Quijandria, F.
title_short PT-symmetric circuit QED
title_full PT-symmetric circuit QED
title_fullStr PT-symmetric circuit QED
title_full_unstemmed PT-symmetric circuit QED
title_sort PT-symmetric circuit QED
dc.creator.none.fl_str_mv Quijandria, F.
Naether, U.
Ozdemir, S.K.
Nori, F.
Zueco, D.
author Quijandria, F.
author_facet Quijandria, F.
Naether, U.
Ozdemir, S.K.
Nori, F.
Zueco, D.
author_role author
author2 Naether, U.
Ozdemir, S.K.
Nori, F.
Zueco, D.
author2_role author
author
author
author
description A parity-time (PT)-symmetric system emerging from a quantum dynamics is highly desirable in order to understand the possible implications of PT symmetry in the next generation of quantum technologies. In this work, we address this need by proposing and studying a circuit-QED architecture that consists of two coupled resonators and two qubits (each coupled to one resonator). By means of external driving fields on the qubits, we are able to tune gains and losses in the resonators. Starting with the quantum dynamics of this system, we show the emergence of the PT symmetry via the selection of both driving amplitudes and frequencies. We engineer the system such that a non-number-conserving dipole-dipole interaction emerges, introducing an instability at large coupling strengths. The PT symmetry and its breaking, as well as the predicted instability in this circuit-QED system, can be observed in a transmission experiment.
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://zaguan.unizar.es/record/75703
url http://zaguan.unizar.es/record/75703
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/ES/DGA/FENOL-GROUP
info:eu-repo/grantAgreement/ES/MINECO/FIS2014-55867
info:eu-repo/grantAgreement/ES/MINECO/MAT2014-53432-C5-1-R
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv
publisher.none.fl_str_mv
dc.source.none.fl_str_mv reponame:Zaguán. Repositorio Digital de la Universidad de Zaragoza
instname:Universidad de Zaragoza
instname_str Universidad de Zaragoza
reponame_str Zaguán. Repositorio Digital de la Universidad de Zaragoza
collection Zaguán. Repositorio Digital de la Universidad de Zaragoza
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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