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dc.contributor.authorWarszawski, P
dc.contributor.authorWiseman, HM
dc.date.accessioned2017-05-03T11:51:03Z
dc.date.available2017-05-03T11:51:03Z
dc.date.issued2003
dc.date.modified2009-10-08T06:29:35Z
dc.identifier.issn1464-4266
dc.identifier.doi10.1088/1464-4266/5/1/302
dc.identifier.urihttp://hdl.handle.net/10072/6307
dc.description.abstractIn the preceding paper (Warszawski P and Wiseman H M 2002 J. Opt. B: Quantum Semiclass. Opt. 4 1) we presented a general formalism for determining the state of a quantum system conditional on the output of a realistic detector, including effects such as a finite bandwidth and electronic noise. We applied this theory to two sorts of photodetector: avalanche photodiodes and photoreceivers. In this paper we present simulations of these realistic quantum trajectories for a cavity quantum electro-dynamics scenario in order to ascertain how the conditioned state varies from that obtained with perfect detection. Large differences are found, and this is manifest in the average of the conditional purity. Simulation also allows us to comprehensively investigate how the quality of the photoreceiver (PR) depends upon its physical parameters. In particular, we present evidence that in the limit of small electronic noise, the PR quality can be characterized by an effective bandwidth, which depends upon the level of electronic noise and the filter bandwidth. We establish this result as an appropriate limit for a simpler, analytically solvable, system. We expect this to be a general result in other applications of our theory.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent571557 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherInstitute of Physics Publishing
dc.publisher.placeUK
dc.publisher.urihttps://iopscience.iop.org/article/10.1088/1464-4266/5/1/302
dc.relation.ispartofpagefrom15
dc.relation.ispartofpageto28
dc.relation.ispartofjournalJournal of Optics B: Quantum and Semiclassical Optics
dc.relation.ispartofvolume5
dc.subject.fieldofresearchcode240201
dc.titleQuantum trajectories for realistic photodetection: II. Application and analysis.
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2003 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.
gro.date.issued2003
gro.hasfulltextFull Text
gro.griffith.authorWiseman, Howard M.


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