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dc.contributor.authorKarasik, Raisaen_US
dc.contributor.authorWiseman, Howarden_US
dc.date.accessioned2017-04-04T15:21:03Z
dc.date.available2017-04-04T15:21:03Z
dc.date.issued2011en_US
dc.date.modified2012-06-14T22:28:54Z
dc.identifier.issn00319007en_US
dc.identifier.doi10.1103/PhysRevLett.106.020406en_US
dc.identifier.urihttp://hdl.handle.net/10072/42800
dc.description.abstractA D-dimensional Markovian open quantum system will undergo quantum jumps between pure states, if we can monitor the bath to which it is coupled with sufficient precision. In general, these jumps, plus the between-jump evolution, create a trajectory which passes through infinitely many different pure states. Here we show that, for any ergodic master equation, one can expect to find an adaptive monitoring scheme on the bath that can confine the system state to jumping between only K states, for some K=(D-1)2+1. For D=2 we explicitly construct a two-state ensemble for any ergodic master equation, showing that one bit is always sufficient to track a qubit.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.format.extent694492 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.ispartofpagefrom020406-1en_US
dc.relation.ispartofpageto020406-4en_US
dc.relation.ispartofissue2en_US
dc.relation.ispartofjournalPhysical Review Lettersen_US
dc.relation.ispartofvolume106en_US
dc.rights.retentionYen_US
dc.subject.fieldofresearchQuantum Information, Computation and Communicationen_US
dc.subject.fieldofresearchQuantum Opticsen_US
dc.subject.fieldofresearchQuantum Physics not elsewhere classifieden_US
dc.subject.fieldofresearchcode020603en_US
dc.subject.fieldofresearchcode020604en_US
dc.subject.fieldofresearchcode020699en_US
dc.titleHow Many Bits Does It Take to Track an Open Quantum System?en_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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