Probing the strongly driven spin-boson model in a superconducting quantum circuit

Quantum two-level systems interacting with the surroundings are ubiquitous in nature. The interaction suppresses quantum coherence and forces the system towards a steady state. Such dissipative processes are captured by the paradigmatic spin-boson model, describing a two-state particle, the “spin”,...

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Autores: Magazzù, Luca, Forn Diaz, Pol|||0000-0003-4365-5157, Belyansky, Ron, Orgiazzi, Jean-Luc, Yurtalan, Muhammet, Otto, Martin R., Lupascu, Adrian, Wilson, Christopher, Grifoni, Milena
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/191650
Acceso en línea:https://hdl.handle.net/2117/191650
https://dx.doi.org/10.1038/s41467-018-03626-w
Access Level:acceso abierto
Palabra clave:Quantum computers
Quantum optics
Quantum theory
Ordinadors quàntics
Òptica quàntica
Quàntums, Teoria dels
Àrees temàtiques de la UPC::Física
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spelling Probing the strongly driven spin-boson model in a superconducting quantum circuitMagazzù, LucaForn Diaz, Pol|||0000-0003-4365-5157Belyansky, RonOrgiazzi, Jean-LucYurtalan, MuhammetOtto, Martin R.Lupascu, AdrianWilson, ChristopherGrifoni, MilenaQuantum computersQuantum opticsQuantum theoryOrdinadors quànticsÒptica quànticaQuàntums, Teoria delsÀrees temàtiques de la UPC::FísicaQuantum two-level systems interacting with the surroundings are ubiquitous in nature. The interaction suppresses quantum coherence and forces the system towards a steady state. Such dissipative processes are captured by the paradigmatic spin-boson model, describing a two-state particle, the “spin”, interacting with an environment formed by harmonic oscillators. A fundamental question to date is to what extent intense coherent driving impacts a strongly dissipative system. Here we investigate experimentally and theoretically a superconducting qubit strongly coupled to an electromagnetic environment and subjected to a coherent drive. This setup realizes the driven Ohmic spin-boson model. We show that the drive reinforces environmental suppression of quantum coherence, and that a coherent-to-incoherent transition can be achieved by tuning the drive amplitude. An out-of-equilibrium detailed balance relation is demonstrated. These results advance fundamental understanding of open quantum systems and bear potential for the design of entangled light-matter states.The authors acknowledge financial support by the Deutsche Forschungsgemeinschaft via SFB 631, NSERC of Canada, the Canadian Foundation for Innovation, the Ontario Ministry of Research and Innovation, Industry Canada and Canadian Microelectronics Corporation. L.M. gratefully acknowledges financial support by the Angelo Della Riccia Foundation and hospitality by the Regensburg University during the early stages of the project. P.F.-D. is supported by the Beatriu de Pinós fellowship (2016BP00303).Peer Reviewed20182018-04-1120202020-06-26journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/191650https://dx.doi.org/10.1038/s41467-018-03626-wreponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttps://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1916502026-05-27T15:37:01Z
dc.title.none.fl_str_mv Probing the strongly driven spin-boson model in a superconducting quantum circuit
title Probing the strongly driven spin-boson model in a superconducting quantum circuit
spellingShingle Probing the strongly driven spin-boson model in a superconducting quantum circuit
Magazzù, Luca
Quantum computers
Quantum optics
Quantum theory
Ordinadors quàntics
Òptica quàntica
Quàntums, Teoria dels
Àrees temàtiques de la UPC::Física
title_short Probing the strongly driven spin-boson model in a superconducting quantum circuit
title_full Probing the strongly driven spin-boson model in a superconducting quantum circuit
title_fullStr Probing the strongly driven spin-boson model in a superconducting quantum circuit
title_full_unstemmed Probing the strongly driven spin-boson model in a superconducting quantum circuit
title_sort Probing the strongly driven spin-boson model in a superconducting quantum circuit
dc.creator.none.fl_str_mv Magazzù, Luca
Forn Diaz, Pol|||0000-0003-4365-5157
Belyansky, Ron
Orgiazzi, Jean-Luc
Yurtalan, Muhammet
Otto, Martin R.
Lupascu, Adrian
Wilson, Christopher
Grifoni, Milena
author Magazzù, Luca
author_facet Magazzù, Luca
Forn Diaz, Pol|||0000-0003-4365-5157
Belyansky, Ron
Orgiazzi, Jean-Luc
Yurtalan, Muhammet
Otto, Martin R.
Lupascu, Adrian
Wilson, Christopher
Grifoni, Milena
author_role author
author2 Forn Diaz, Pol|||0000-0003-4365-5157
Belyansky, Ron
Orgiazzi, Jean-Luc
Yurtalan, Muhammet
Otto, Martin R.
Lupascu, Adrian
Wilson, Christopher
Grifoni, Milena
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Quantum computers
Quantum optics
Quantum theory
Ordinadors quàntics
Òptica quàntica
Quàntums, Teoria dels
Àrees temàtiques de la UPC::Física
topic Quantum computers
Quantum optics
Quantum theory
Ordinadors quàntics
Òptica quàntica
Quàntums, Teoria dels
Àrees temàtiques de la UPC::Física
description Quantum two-level systems interacting with the surroundings are ubiquitous in nature. The interaction suppresses quantum coherence and forces the system towards a steady state. Such dissipative processes are captured by the paradigmatic spin-boson model, describing a two-state particle, the “spin”, interacting with an environment formed by harmonic oscillators. A fundamental question to date is to what extent intense coherent driving impacts a strongly dissipative system. Here we investigate experimentally and theoretically a superconducting qubit strongly coupled to an electromagnetic environment and subjected to a coherent drive. This setup realizes the driven Ohmic spin-boson model. We show that the drive reinforces environmental suppression of quantum coherence, and that a coherent-to-incoherent transition can be achieved by tuning the drive amplitude. An out-of-equilibrium detailed balance relation is demonstrated. These results advance fundamental understanding of open quantum systems and bear potential for the design of entangled light-matter states.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-04-11
2020
2020-06-26
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/191650
https://dx.doi.org/10.1038/s41467-018-03626-w
url https://hdl.handle.net/2117/191650
https://dx.doi.org/10.1038/s41467-018-03626-w
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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