Detecting metrologically useful entanglement in the vicinity of Dicke states

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dc.identifier.uri Apellaniz, Iagoba Lücke, Bernd Peise, Jan Klempt, Carsten Toth, Geza 2016-08-12T07:48:11Z 2016-08-12T07:48:11Z 2015-08-13
dc.identifier.citation Apellaniz, Iagoba; Luecke, Bernd; Peise, Jan; Klempt, Carsten; Toth, Geza: Detecting metrologically useful entanglement in the vicinity of Dicke states. In: New Journal of Physics 17 (2015), 83027. DOI:
dc.description.abstract We present a method to verify the metrological usefulness of noisy Dicke states of a particle ensemble with only a few collective measurements, without the need for a direct measurement of the sensitivity. Our method determines the usefulness of the state for the usual protocol for estimating the angle of rotation with Dicke states, which is based on the measurement of the second moment of a total spin component. It can also be used to detect entangled states that are useful for quantum metrology. We apply our method to recent experimental results. eng
dc.description.sponsorship EU/ERC/Starting Grant 258647/GEDENTQOPT
dc.description.sponsorship EU/CHIST-ERA QUASAR
dc.description.sponsorship EU/MINECO/FIS2012-36673-C03-03
dc.description.sponsorship Basque Government/IT4720-10
dc.description.sponsorship UPV/EHU/UFI 11/55
dc.description.sponsorship OTKA/K83858
dc.description.sponsorship QUEST
dc.description.sponsorship EMRP
dc.description.sponsorship DFG/Research Training Group 1729
dc.language.iso eng
dc.publisher Bristol : IOP Publishing Ltd.
dc.relation.ispartofseries New Journal of Physics 17 (2015)
dc.rights CC BY 3.0
dc.subject quantum Fisher information eng
dc.subject quantum metrology eng
dc.subject quantum entanglement eng
dc.subject Dicke states eng
dc.subject horne-zeilinger entanglement eng
dc.subject quantum-enhanced metrology eng
dc.subject heisenberg limit eng
dc.subject multipartite entanglement eng
dc.subject precision limit eng
dc.subject trapped ions eng
dc.subject spectroscopy eng
dc.subject light eng
dc.subject atoms eng
dc.subject.ddc 530 | Physik ger
dc.title Detecting metrologically useful entanglement in the vicinity of Dicke states
dc.type article
dc.type Text
dc.relation.essn 1367-2630
dc.bibliographicCitation.volume 17
dc.bibliographicCitation.firstPage 83027
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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