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dc.contributor.authorZwierz, Marcin
dc.contributor.authorA. Pe ́rez-Delgado, Carlos
dc.contributor.authorKok, Pieter
dc.date.accessioned2017-05-03T16:06:11Z
dc.date.available2017-05-03T16:06:11Z
dc.date.issued2010
dc.date.modified2012-06-07T21:59:35Z
dc.identifier.issn10502947
dc.identifier.doi10.1103/PhysRevA.82.042320
dc.identifier.urihttp://hdl.handle.net/10072/42808
dc.description.abstractWe reveal a close relationship between quantum metrology and the Deutsch-Jozsa algorithm on continuous- variable quantum systems. We develop a general procedure, characterized by two parameters, that unifies parameter estimation and the Deutsch-Jozsa algorithm. Depending on which parameter we keep constant, the procedure implements either the parameter-estimation protocol or the Deutsch-Jozsa algorithm. The parameter-estimation part of the procedure attains the Heisenberg limit and is therefore optimal. Due to the use of approximate normalizable continuous-variable eigenstates, the Deutsch-Jozsa algorithm is probabilistic. The procedure estimates a value of an unknown parameter and solves the Deutsch-Jozsa problem without the use of any entanglement.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent141071 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.publisher.placeUnited States
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom042320-1
dc.relation.ispartofpageto042320-7
dc.relation.ispartofissue4
dc.relation.ispartofjournalPhysical Review A
dc.relation.ispartofvolume82
dc.rights.retentionY
dc.subject.fieldofresearchQuantum Information, Computation and Communication
dc.subject.fieldofresearchQuantum Optics
dc.subject.fieldofresearchMathematical Sciences
dc.subject.fieldofresearchPhysical Sciences
dc.subject.fieldofresearchChemical Sciences
dc.subject.fieldofresearchcode020603
dc.subject.fieldofresearchcode020604
dc.subject.fieldofresearchcode01
dc.subject.fieldofresearchcode02
dc.subject.fieldofresearchcode03
dc.titleUnifying parameter estimation and the Deutsch-Jozsa algorithm for continuous variables
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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