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Precision quantum metrology and nonclassicality in linear and nonlinear detection schemes

dc.contributor.authorRivas, Ángel
dc.contributor.authorLuis Aina, Alfredo
dc.date.accessioned2023-06-20T03:54:08Z
dc.date.available2023-06-20T03:54:08Z
dc.date.issued2010-06-30
dc.description© 2010. The American Physical Society. A. R. acknowledges Susana F. Huelga for illuminating comments and financial support from the EU Integrated Projects QAP, QESSENCE, and the STREP action CORNER. A. L. acknowledges support from official Spanish projects No. FIS2008-01267 and QUITEMAD S2009-ESP-1594.
dc.description.abstractWe examine whether metrological resolution beyond coherent states is a nonclassical effect. We show that this is true for linear detection schemes but false for nonlinear schemes, and propose a very simple experimental setup to test it. We find a nonclassicality criterion derived from quantum Fisher information.
dc.description.departmentDepto. de Óptica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipComunidad de Madrid
dc.description.sponsorshipUnión Europea. FP7
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/30878
dc.identifier.doi10.1103/PhysRevLett.105.010403
dc.identifier.issn0031-9007
dc.identifier.officialurlhttp://dx.doi.org/10.1103/PhysRevLett.105.010403
dc.identifier.relatedurlhttp://journals.aps.org/
dc.identifier.urihttps://hdl.handle.net/20.500.14352/44641
dc.issue.number1
dc.journal.titlePhysical review letters
dc.language.isoeng
dc.page.final010403_4
dc.page.initial010403_1
dc.publisherAmerican Physical Society
dc.relation.projectIDQUITEMAD-CM (S2009/ESP-1594)
dc.relation.projectIDQ-ESSENCE (248095)
dc.relation.projectIDFIS2008-01267
dc.relation.projectIDSTREP project CORNER
dc.relation.projectIDQAP project
dc.rights.accessRightsopen access
dc.subject.cdu535
dc.subject.keywordWigner function
dc.subject.keywordPhase measurements
dc.subject.keywordHeisenberg limit
dc.subject.keywordDensity-matrices
dc.subject.keywordNumber
dc.subject.keywordStates
dc.subject.keywordComputation
dc.subject.keywordDistance
dc.subject.keywordSpace
dc.subject.ucmÓptica (Física)
dc.subject.unesco2209.19 Óptica Física
dc.titlePrecision quantum metrology and nonclassicality in linear and nonlinear detection schemes
dc.typejournal article
dc.volume.number105
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relation.isAuthorOfPublication.latestForDiscoveryb6f1fe2b-ee48-4add-bb0d-ffcbfad10da2

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