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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Authors: Quijandría, Fernando, Naether, Uta, Özdemir, Sahin K., Nori, Franco, Zueco, David
Format: article
Status:Published version
Publication Date:2018
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/181263
Online Access:http://hdl.handle.net/10261/181263
Access Level:Open access
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spelling PT -symmetric circuit QEDQuijandría, FernandoNaether, UtaÖzdemir, Sahin K.Nori, FrancoZueco, DavidA 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.F.Q. acknowledges financial support from the Swedish Research Council and the Knut and Alice Wallenberg Foundation. S.K.O. is supported by ARO Grant No.W911NF-18-1-0043 and by The Pennsylvania State University, Materials Research Institute. F.N. is partially supported by the MURI Center for Dynamic Magneto-Optics via the AFOSR Award No. FA9550-14-1-0040, the Japan Society for the Promotion of Science (KAKENHI), the IMPACT program of JST, CREST Grant No. JPMJCR1676, RIKEN-AIST Challenge Research Fund, JSPS-RFBR Grant No. 17-52-50023, and the Sir John Templeton Foundation. D.Z. acknowledges support by the Spanish Ministerio de Economia y Competitividad within Projects No. MAT2014- 53432-C5-1-R and No. FIS2014- 55867 and the Gobierno de Aragon (FENOL group). F.Q., S.K.O., and D.Z. acknowledge the hospitality of Riken where part of this work was done.Peer reviewedAmerican Physical SocietySwedish Research CouncilKnut and Alice Wallenberg FoundationUS Army Research LaboratoryPennsylvania State UniversityMultidisciplinary University Research Initiative (US)Air Force Office of Scientific Research (US)Japan Society for the Promotion of ScienceJohn Templeton FoundationMinisterio de Economía y Competitividad (España)Gobierno de AragónConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201920192018info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/181263reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2014-53432-C5-1-Rinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FIS2014-55867-Phttps://doi.org/10.1103/PhysRevA.97.053846Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1812632026-05-22T06:33:51Z
dc.title.none.fl_str_mv PT -symmetric circuit QED
title PT -symmetric circuit QED
spellingShingle PT -symmetric circuit QED
Quijandría, Fernando
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 Quijandría, Fernando
Naether, Uta
Özdemir, Sahin K.
Nori, Franco
Zueco, David
author Quijandría, Fernando
author_facet Quijandría, Fernando
Naether, Uta
Özdemir, Sahin K.
Nori, Franco
Zueco, David
author_role author
author2 Naether, Uta
Özdemir, Sahin K.
Nori, Franco
Zueco, David
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Swedish Research Council
Knut and Alice Wallenberg Foundation
US Army Research Laboratory
Pennsylvania State University
Multidisciplinary University Research Initiative (US)
Air Force Office of Scientific Research (US)
Japan Society for the Promotion of Science
John Templeton Foundation
Ministerio de Economía y Competitividad (España)
Gobierno de Aragón
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
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
2019
2019
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/10261/181263
url http://hdl.handle.net/10261/181263
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2014-53432-C5-1-R
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FIS2014-55867-P
https://doi.org/10.1103/PhysRevA.97.053846
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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