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dc.contributor.authorZwierz, Marcin
dc.contributor.authorA. Pe´rez-Delgado, Carlos
dc.contributor.authorKok, Pieter
dc.date.accessioned2017-05-03T13:12:04Z
dc.date.available2017-05-03T13:12:04Z
dc.date.issued2010
dc.date.modified2012-06-07T21:58:11Z
dc.identifier.issn00319007
dc.identifier.doi10.1103/PhysRevLett.105.180402
dc.identifier.urihttp://hdl.handle.net/10072/42768
dc.description.abstractQuantum metrology promises improved sensitivity in parameter estimation over classical procedures. However, there is a debate over the question of how the sensitivity scales with the resources and the number of queries that are used in estimation procedures. Here, we reconcile the physical definition of the relevant resources used in parameter estimation with the information-theoretical scaling in terms of the query complexity of a quantum network. This leads to a completely general optimality proof of the Heisenberg limit for quantum metrology. We give an example of how our proof resolves paradoxes that suggest sensitivities beyond the Heisenberg limit, and we show that the Heisenberg limit is an information-theoretic interpretation of the Margolus-Levitin bound, rather than Heisenberg's uncertainty relation.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent84902 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.publisher.placeUnited States
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom180402-1
dc.relation.ispartofpageto180402-4
dc.relation.ispartofissue18
dc.relation.ispartofjournalPhysical Review Letters
dc.relation.ispartofvolume105
dc.rights.retentionY
dc.subject.fieldofresearchQuantum Information, Computation and Communication
dc.subject.fieldofresearchQuantum Optics
dc.subject.fieldofresearchQuantum Physics not elsewhere classified
dc.subject.fieldofresearchMathematical Sciences
dc.subject.fieldofresearchPhysical Sciences
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchcode020603
dc.subject.fieldofresearchcode020604
dc.subject.fieldofresearchcode020699
dc.subject.fieldofresearchcode01
dc.subject.fieldofresearchcode02
dc.subject.fieldofresearchcode09
dc.titleGeneral Optimality of the Heisenberg Limit for Quantum Metrology
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2010 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.date.issued2010
gro.hasfulltextFull Text
gro.griffith.authorZwierz, Marcin


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