Photon-number-dependent effective Lamb shift

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorViitanen, Arto
dc.contributor.authorSilveri, Matti
dc.contributor.authorJenei, Mate
dc.contributor.authorSevriuk, Vasilii
dc.contributor.authorTan, Kuan Y.
dc.contributor.authorPartanen, Matti
dc.contributor.authorGoetz, Jan
dc.contributor.authorGronberg, Leif
dc.contributor.authorVadimov, Vasilii
dc.contributor.authorLahtinen, Valtteri
dc.contributor.authorMottonen, Mikko
dc.contributor.departmentQuantum Computing and Devices
dc.contributor.departmentUniversity of Oulu
dc.contributor.departmentCentre of Excellence in Quantum Technology, QTF
dc.contributor.departmentDepartment of Applied Physics
dc.contributor.departmentVTT Technical Research Centre of Finland
dc.date.accessioned2021-09-15T06:40:02Z
dc.date.available2021-09-15T06:40:02Z
dc.date.issued2021-09
dc.description| openaire: EC/H2020/681311/EU//QUESS | openaire: EC/H2020/795159/EU//NEQC
dc.description.abstractThe Lamb shift, an energy shift arising from the presence of the electromagnetic vacuum, has been observed in various quantum systems and established as part of the energy shift independent of the environmental photon number. However, typical studies are based on simplistic bosonic models which may be challenged in practical quantum devices. We demonstrate a hybrid bosonic-fermionic environment for a linear resonator mode and observe that the photon number in the environment can dramatically increase both the dissipation and the effective Lamb shift of the mode. Our observations are quantitatively described by a first-principles model, which we develop here also to guide device design for future quantum-technological applications. The device demonstrated here can be utilized as a fully rf-operated quantum-circuit refrigerator to quickly reset superconducting qubits.en
dc.description.versionPeer revieweden
dc.format.extent14
dc.format.mimetypeapplication/pdf
dc.identifier.citationViitanen , A , Silveri , M , Jenei , M , Sevriuk , V , Tan , K Y , Partanen , M , Goetz , J , Gronberg , L , Vadimov , V , Lahtinen , V & Mottonen , M 2021 , ' Photon-number-dependent effective Lamb shift ' , PHYSICAL REVIEW RESEARCH , vol. 3 , no. 3 , 033126 . https://doi.org/10.1103/PhysRevResearch.3.033126en
dc.identifier.doi10.1103/PhysRevResearch.3.033126
dc.identifier.issn2643-1564
dc.identifier.otherPURE UUID: 57a32008-768c-44bd-9c48-f04f056a8881
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/57a32008-768c-44bd-9c48-f04f056a8881
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85115891489&partnerID=8YFLogxK
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/67373994/Photon_number_dependent_effective_Lamb_shift.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/109936
dc.identifier.urnURN:NBN:fi:aalto-202109159159
dc.language.isoenen
dc.publisherAmerican Physical Society
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/795159/EU//NEQC
dc.relation.ispartofseriesPHYSICAL REVIEW RESEARCHen
dc.relation.ispartofseriesVolume 3, issue 3en
dc.rightsopenAccessen
dc.subject.keywordQUANTUM SUPREMACY
dc.subject.keywordVACUUM
dc.subject.keywordCIRCUIT
dc.titlePhoton-number-dependent effective Lamb shiften
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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