Thermal and quantum decay of supercurrent in highly transparent weak links

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorGalaktionov, Artem V.
dc.contributor.authorGolubev, Dmitry S.
dc.contributor.authorZaikin, Andrei D.
dc.contributor.departmentRAS - P.N. Lebedev Physics Institute
dc.contributor.departmentCentre of Excellence in Quantum Technology, QTF
dc.contributor.departmentKarlsruhe Institute of Technology
dc.contributor.departmentDepartment of Applied Physicsen
dc.date.accessioned2020-01-02T14:04:22Z
dc.date.available2020-01-02T14:04:22Z
dc.date.embargoinfo:eu-repo/date/embargoEnd/2020-02-13
dc.date.issued2019-03-01
dc.description.abstractWe analyze a trade-off between thermal activation (TA) and quantum tunneling in the problem of supercurrent decay in superconducting junctions with highly transparent barriers. In such systems – unlike in conventional tunnel junctions – the supercurrent decay is essentially influenced by low energy Andreev levels forming an intrinsic quantum dissipative environment for the Josephson particle. We evaluate the temperature dependent supercurrent decay rate Γ(T) and elucidate a variety of different regimes for such a decay. We demonstrate that no classical-to-quantum crossover exists in the limit of fully transparent barriers, in which case quantum tunneling always prevails over TA.en
dc.description.versionPeer revieweden
dc.format.extent12
dc.format.extent2001-2012
dc.format.mimetypeapplication/pdf
dc.identifier.citationGalaktionov , A V , Golubev , D S & Zaikin , A D 2019 , ' Thermal and quantum decay of supercurrent in highly transparent weak links ' , EUROPEAN PHYSICAL JOURNAL: SPECIAL TOPICS , vol. 227 , no. 15-16 , pp. 2001-2012 . https://doi.org/10.1140/epjst/e2019-800052-2en
dc.identifier.doi10.1140/epjst/e2019-800052-2
dc.identifier.issn1951-6355
dc.identifier.issn1951-6401
dc.identifier.otherPURE UUID: 917eca97-b77c-48e9-8230-c490f18f5661
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/917eca97-b77c-48e9-8230-c490f18f5661
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dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/39088152/Golubev_EPJ_special_topics_2019.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/42132
dc.identifier.urnURN:NBN:fi:aalto-202001021243
dc.language.isoenen
dc.publisherSpringer Verlag
dc.relation.ispartofseriesEUROPEAN PHYSICAL JOURNAL: SPECIAL TOPICSen
dc.relation.ispartofseriesVolume 227, issue 15-16en
dc.rightsopenAccessen
dc.titleThermal and quantum decay of supercurrent in highly transparent weak linksen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
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