Show simple item record

dc.contributor.authorZwierz, Marcinen_US
dc.contributor.authorA. Pe ́rez-Delgado, Carlosen_US
dc.contributor.authorKok, Pieteren_US
dc.date.accessioned2017-04-24T13:44:50Z
dc.date.available2017-04-24T13:44:50Z
dc.date.issued2012en_US
dc.date.modified2013-06-03T00:33:51Z
dc.identifier.issn10502947en_US
dc.identifier.doi10.1103/PhysRevA.85.042112en_US
dc.identifier.urihttp://hdl.handle.net/10072/46991
dc.description.abstractFor the last 20 years, the question of what are the fundamental capabilities of quantum precision measurements has sparked a lively debate throughout the scientific community. Typically, the ultimate limits in quantum metrology are associated with the notion of the Heisenberg limit expressed in terms of the physical resources used in the measurement procedure. Over the years, a variety of different physical resources were introduced, leading to a confusion about the meaning of the Heisenberg limit. Here, we review the mainstream definitions of the relevant resources and introduce the universal resource count, that is, the expectation value of the generator (above its ground state) of translations in the parameter we wish to estimate, that applies to all measurement strategies. This leads to the ultimate formulation of the Heisenberg limit for quantum metrology. We prove that this limit holds for the generators of translations with an upper-bounded spectrum.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.format.extent256670 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.language.isoen_US
dc.publisherAmerican Physical Societyen_US
dc.publisher.placeUnited Statesen_US
dc.relation.ispartofstudentpublicationNen_US
dc.relation.ispartofpagefrom042112-1en_US
dc.relation.ispartofpageto042112-8en_US
dc.relation.ispartofissue4en_US
dc.relation.ispartofjournalPhysical Review Aen_US
dc.relation.ispartofvolume85en_US
dc.rights.retentionYen_US
dc.subject.fieldofresearchQuantum Information, Computation and Communicationen_US
dc.subject.fieldofresearchcode020603en_US
dc.titleUltimate limits to quantum metrology and the meaning of the Heisenberg limiten_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.rights.copyrightCopyright 2012 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.en_US
gro.date.issued2012
gro.hasfulltextFull Text


Files in this item

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record