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dc.contributor.authorGambetta, Jayen_US
dc.contributor.authorWiseman, Howarden_US
dc.date.accessioned2017-04-24T08:47:44Z
dc.date.available2017-04-24T08:47:44Z
dc.date.issued2005en_US
dc.date.modified2009-10-08T06:30:42Z
dc.identifier.issn14644266en_US
dc.identifier.doi10.1088/1464-4266/7/10/008en_AU
dc.identifier.urihttp://hdl.handle.net/10072/4933
dc.description.abstractIn a partially observed quantum or classical system the information that we cannot access results in our description of the system becoming mixed, even if we have perfect initial knowledge. That is, if the system is quantum the conditional state will be given by a state matrix ?r(t), and if classical, the conditional state will be given by a probability distribution Pr(x,t), where r is the result of the measurement. Thus to determine the evolution of this conditional state, under continuous-in-time monitoring, requires a numerically expensive calculation. In this paper we demonstrate a numerical technique based on linear measurement theory that allows us to determine the conditional state using only pure states. That is, our technique reduces the problem size by a factor of N, the number of basis states for the system. Furthermore we show that our method can be applied to joint classical and quantum systems such as arise in modelling realistic (finite bandwidth, noisy) measurement.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.format.extent344446 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherInstitute of Physics Publishing Ltden_US
dc.publisher.placeBristol, UKen_US
dc.publisher.urihttp://www.iop.org/EJ/journal/JOptBen_AU
dc.relation.ispartofstudentpublicationNen_AU
dc.relation.ispartofpagefromS250en_US
dc.relation.ispartofpagetoS264en_US
dc.relation.ispartofjournalJournal of Optics B: Quantum and semiclassical opticsen_US
dc.relation.ispartofvolume7en_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchcode240402en_US
dc.titleStochastic simulations of conditional states of partially observed systems, quantum and classicalen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.rights.copyrightCopyright 2005 Institute of Physics Publishing. 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_AU
gro.date.issued2005
gro.hasfulltextFull Text


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