Probing mechanical quantum coherence with an ultracold-atom meter

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dc.contributor.author Lo Gullo, Nicola
dc.contributor.author Busch, Thomas
dc.contributor.author Palma, G. M.
dc.contributor.author Paternostro, Mauro
dc.date.accessioned 2017-08-22T10:30:38Z
dc.date.available 2017-08-22T10:30:38Z
dc.date.issued 2011
dc.identifier.citation Lo 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.84.063815 en
dc.identifier.volume 84
dc.identifier.issued 6
dc.identifier.issn 1050-2947
dc.identifier.uri http://hdl.handle.net/10468/4507
dc.identifier.doi 10.1103/PhysRevA.84.063815
dc.description.abstract We 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.sponsorship Irish 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.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Physical Society en
dc.relation.uri https://journals.aps.org/pra/abstract/10.1103/PhysRevA.84.063815
dc.rights © 2011, American Physical Society en
dc.subject Bose-Einstein condensate en
dc.subject Radiation-pressure en
dc.subject Optical cavity en
dc.subject Dynamics en
dc.subject Spin en
dc.subject Optomechanics en
dc.subject Micromirror en
dc.subject Resonator en
dc.subject State en
dc.title Probing mechanical quantum coherence with an ultracold-atom meter en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Nicola LoGullo, University College Cork, Cork, Ireland. +353-21-490-3000 Email: nlogullo@phys.ucc.ie en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.internal.wokid WOS:000297759500010
dc.contributor.funder Engineering and Physical Sciences Research Council
dc.contributor.funder Eurotech
dc.contributor.funder Science Foundation Ireland
dc.contributor.funder Irish Research Council for Science, Engineering and Technology
dc.description.status Peer reviewed en
dc.identifier.journaltitle Physical Review A en
dc.internal.IRISemailaddress nlogullo@phys.ucc.ie en
dc.identifier.articleid 63815


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