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dc.contributor.authorKarasik, Raisaen_US
dc.contributor.authorWiseman, Howarden_US
dc.date.accessioned2017-04-24T08:47:10Z
dc.date.available2017-04-24T08:47:10Z
dc.date.issued2011en_US
dc.date.modified2012-06-14T22:36:50Z
dc.identifier.issn10941622en_US
dc.identifier.doi10.1103/PhysRevA.84.052120en_US
dc.identifier.urihttp://hdl.handle.net/10072/42772
dc.description.abstractA finite-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, even for ergodic systems. However, as shown recently by us [Phys. Rev. Lett. /textbf{106}, 020406 (2011)], it is possible to construct {/em adaptive} monitorings which restrict the system to jumping between a finite number of states. That is, it is possible to track the system using a {/em finite state machine} as the apparatus. In this paper we consider the question of the stability of these monitoring schemes. Restricting to cyclic jumps for a qubit, we give a strong analytical argument that these schemes are always stable, and supporting analytical and numerical evidence for the example of resonance fluorescence. This example also enables us to explore a range of behaviors in the evolution of individual trajectories, for several different monitoring schemes.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.format.extent1780422 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.ispartofpagefrom052120-1en_US
dc.relation.ispartofpageto052120-16en_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 Opticsen_US
dc.subject.fieldofresearchQuantum Information, Computation and Communicationen_US
dc.subject.fieldofresearchcode020604en_US
dc.subject.fieldofresearchcode020603en_US
dc.titleTracking an open quantum system using a finite state machine: Stability analysisen_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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