Probing mechanical quantum coherence with an ultracold-atom meter

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dc.contributor.authorLo Gullo, Nicola
dc.contributor.authorBusch, Thomas
dc.contributor.authorPalma, G. M.
dc.contributor.authorPaternostro, Mauro
dc.contributor.funderEngineering and Physical Sciences Research Council
dc.contributor.funderEurotech
dc.contributor.funderScience Foundation Ireland
dc.contributor.funderIrish Research Council for Science, Engineering and Technology
dc.date.accessioned2017-08-22T10:30:38Z
dc.date.available2017-08-22T10:30:38Z
dc.date.issued2011
dc.description.abstractWe propose a scheme to probe quantum coherence in the state of a nanocantilever based on its magnetic coupling (mediated by a magnetic tip) with a spinor Bose Einstein condensate (BEC). By mapping the BEC into a rotor, its coupling with the cantilever results in a gyroscopic motion whose properties depend on the state of the cantilever: the dynamics of one of the components of the rotor angular momentum turns out to be strictly related to the presence of quantum coherence in the state of the cantilever. We also suggest a detection scheme relying on Faraday rotation, which produces only a very small back-action on the BEC and is thus suitable for a continuous detection of the cantilever's dynamics.en
dc.description.sponsorshipIrish Research Council for Science, Engineering and Technology (Embark Initiative (RS/2009/1082); Science Foundation Ireland (05/IN/I852, 10/IN.1/I2979);Engineering and Physical Sciences Research Council (EP/G004579/1)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid63815
dc.identifier.citationLo Gullo, N., Busch, T., Palma, G. M. and Paternostro, M. (2011) 'Probing mechanical quantum coherence with an ultracold-atom meter', Physical Review A, 84(6), 063815 (7pp). doi: 10.1103/PhysRevA.84.063815en
dc.identifier.doi10.1103/PhysRevA.84.063815
dc.identifier.issn1050-2947
dc.identifier.issued6
dc.identifier.journaltitlePhysical Review Aen
dc.identifier.urihttps://hdl.handle.net/10468/4507
dc.identifier.volume84
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.relation.urihttps://journals.aps.org/pra/abstract/10.1103/PhysRevA.84.063815
dc.rights© 2011, American Physical Societyen
dc.subjectBose-Einstein condensateen
dc.subjectRadiation-pressureen
dc.subjectOptical cavityen
dc.subjectDynamicsen
dc.subjectSpinen
dc.subjectOptomechanicsen
dc.subjectMicromirroren
dc.subjectResonatoren
dc.subjectStateen
dc.titleProbing mechanical quantum coherence with an ultracold-atom meteren
dc.typeArticle (peer-reviewed)en
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