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dc.contributor.authorBerry, DW.en_US
dc.contributor.authorWiseman, Howarden_US
dc.date.accessioned2017-05-03T13:46:24Z
dc.date.available2017-05-03T13:46:24Z
dc.date.issued2000en_US
dc.date.modified2009-09-17T07:23:19Z
dc.identifier.issn00319007en_US
dc.identifier.doi10.1103/PhysRevLett.85.5098en_AU
dc.identifier.urihttp://hdl.handle.net/10072/3116
dc.description.abstractWe derive the optimal N-photon two-mode input state for obtaining an estimate f of the phase difference between two arms of an interferometer. For an optimal measurement [B. C. Sanders and G. J. Milburn, Phys. Rev. Lett. 75, 2944 (1995)], it yields a variance (?f)2?p2/N2, compared to O(N-1) or O(N-1/2) for states considered by previous authors. Such a measurement cannot be realized by counting photons in the interferometer outputs. However, we introduce an adaptive measurement scheme that can be thus realized, and show that it yields a variance in f very close to that from an optimal measurementen_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherAmerican Physical Societyen_US
dc.publisher.placeUSAen_US
dc.publisher.urihttp://prola.aps.org/abstract/PRL/v85/i24/p5098_1en_AU
dc.relation.ispartofpagefrom5098en_US
dc.relation.ispartofpageto5102en_US
dc.relation.ispartofissue24en_US
dc.relation.ispartofjournalPhysical Review Lettersen_US
dc.relation.ispartofvolume85en_US
dc.subject.fieldofresearchHISTORY AND ARCHAEOLOGYen_US
dc.subject.fieldofresearchcode210000en_US
dc.titleOptimal States and Almost Optimal Adaptive Measurements for Quantum Interferometryen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.rights.copyrightCopyright 2000 American Physical Society. Reproduced in accordance with the copyright policy of the publisher. This journal is available online - use hypertext links.en_AU
gro.date.issued2000
gro.hasfulltextNo Full Text


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