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dc.contributor.authorSergeevich, Alexandren_US
dc.contributor.authorChandran, Anushyaen_US
dc.contributor.authorCombes, Joshuaen_US
dc.contributor.authorBartlett, Stephen D.en_US
dc.contributor.authorWiseman, Howarden_US
dc.date.accessioned2017-04-24T08:47:09Z
dc.date.available2017-04-24T08:47:09Z
dc.date.issued2011en_US
dc.date.modified2012-06-14T22:35:30Z
dc.identifier.issn10502947en_US
dc.identifier.doi10.1103/PhysRevA.84.052315en_US
dc.identifier.urihttp://hdl.handle.net/10072/42807
dc.description.abstractWe investigate schemes for Hamiltonian parameter estimation of a two-level system using repeated measurements in a fixed basis. The simplest (Fourier based) schemes yield an estimate with a mean-square error (MSE) that decreases at best as a power law ~N-2 in the number of measurements N. By contrast, we present numerical simulations indicating that an adaptive Bayesian algorithm, where the time between measurements can be adjusted based on prior measurement results, yields a MSE which appears to scale close to exp(-0.3N). That is, measurements in a single fixed basis are sufficient to achieve exponential scaling in N.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.format.extent814748 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.ispartofpagefrom052315-1en_US
dc.relation.ispartofpageto052315-5en_US
dc.relation.ispartofissue5en_US
dc.relation.ispartofjournalPhysical Review A (Atomic, Molecular and Optical Physics)en_US
dc.relation.ispartofvolume84en_US
dc.rights.retentionYen_US
dc.subject.fieldofresearchQuantum Information, Computation and Communicationen_US
dc.subject.fieldofresearchcode020603en_US
dc.titleCharacterization of a qubit Hamiltonian using adaptive measurements in a fixed basisen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.rights.copyrightCopyright 2011 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.issued2011
gro.hasfulltextFull Text


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