Enhancing Optomechanical Coupling via the Josephson Effect

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Heikkilä, T. T.
dc.contributor.author Massel, F.
dc.contributor.author Tuorila, J.
dc.contributor.author Khan, R.
dc.contributor.author Sillanpää, Mika A.
dc.date.accessioned 2015-06-02T09:01:38Z
dc.date.available 2015-06-02T09:01:38Z
dc.date.issued 2014
dc.identifier.citation 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.112.203603. en
dc.identifier.issn 0031-9007 (printed)
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/16414
dc.description.abstract Cavity 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.format.extent 203603/1-6
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Physical Society (APS) en
dc.relation.ispartofseries Physical Review Letters en
dc.relation.ispartofseries Volume 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.subject.other Physics en
dc.title Enhancing Optomechanical Coupling via the Josephson Effect en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.rights.holder American Physical Society (APS)
dc.contributor.school Perustieteiden korkeakoulu fi
dc.contributor.school School of Science en
dc.contributor.department Teknillisen fysiikan laitos fi
dc.contributor.department Department of Applied Physics en
dc.subject.keyword cavity optomechanical systems en
dc.subject.keyword Josephson effect en
dc.subject.keyword vibrations en
dc.subject.keyword electromagnetic fields en
dc.subject.keyword micromechanical resonators en
dc.identifier.urn URN:NBN:fi:aalto-201506023065
dc.type.dcmitype text en
dc.identifier.doi 10.1103/physrevlett.112.203603
dc.type.version Final published version en


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