Enhancing Optomechanical Coupling via the Josephson Effect

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorHeikkilä, T. T.
dc.contributor.authorMassel, F.
dc.contributor.authorTuorila, J.
dc.contributor.authorKhan, R.
dc.contributor.authorSillanpää, Mika A.
dc.contributor.departmentTeknillisen fysiikan laitosfi
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.schoolPerustieteiden korkeakoulufi
dc.contributor.schoolSchool of Scienceen
dc.date.accessioned2015-06-02T09:01:38Z
dc.date.available2015-06-02T09:01:38Z
dc.date.issued2014
dc.description.abstractCavity optomechanics is showing promise for studying quantum mechanics in large systems. However, the smallness of the radiation-pressure coupling is a serious hindrance. Here we show how the charge tuning of the Josephson inductance in a single-Cooper-pair transistor can be exploited to arrange a strong radiation-pressure-type coupling g0 between mechanical and microwave resonators. In a certain limit of parameters, such a coupling can also be seen as a qubit-mediated coupling of two resonators. We show that this scheme allows reaching extremely high g0. Contrary to the recent proposals for exploiting the nonlinearity of a large radiation-pressure coupling, the main nonlinearity in this setup originates from a cross-Kerr type of coupling between the resonators, where the cavity refractive index depends on the phonon number. The presence of this coupling will allow accessing the individual phonon numbers via the measurement of the cavity.en
dc.description.versionPeer revieweden
dc.format.extent203603/1-6
dc.format.mimetypeapplication/pdfen
dc.identifier.citationHeikkilä, T. T. & Massel, F. & Tuorila, J. & Khan, R. & Sillanpää, Mika A. 2014. Enhancing Optomechanical Coupling via the Josephson Effect. Physical Review Letters. Volume 112, Issue 20. 203603/1-6. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.112.203603.en
dc.identifier.doi10.1103/physrevlett.112.203603
dc.identifier.issn0031-9007 (printed)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/16414
dc.identifier.urnURN:NBN:fi:aalto-201506023065
dc.language.isoenen
dc.publisherAmerican Physical Society (APS)en
dc.relation.ispartofseriesPhysical Review Lettersen
dc.relation.ispartofseriesVolume 112, Issue 20
dc.rights© 2014 American Physical Society (APS). This is the accepted version of the following article: Heikkilä, T. T. & Massel, F. & Tuorila, J. & Khan, R. & Sillanpää, Mika A. 2014. Enhancing Optomechanical Coupling via the Josephson Effect. Physical Review Letters. Volume 112, Issue 20. 203603/1-6. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.112.20360, which has been published in final form at http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.203603.en
dc.rights.holderAmerican Physical Society (APS)
dc.subject.keywordcavity optomechanical systemsen
dc.subject.keywordJosephson effecten
dc.subject.keywordvibrationsen
dc.subject.keywordelectromagnetic fieldsen
dc.subject.keywordmicromechanical resonatorsen
dc.subject.otherPhysicsen
dc.titleEnhancing Optomechanical Coupling via the Josephson Effecten
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.dcmitypetexten
dc.type.versionFinal published versionen
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