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dc.contributor.authorWiseman, Howarden_US
dc.contributor.authorWarszawski, Prahladen_US
dc.date.accessioned2017-04-24T08:47:28Z
dc.date.available2017-04-24T08:47:28Z
dc.date.issued2003en_US
dc.date.modified2009-10-12T23:14:41Z
dc.identifier.issn10502947en_US
dc.identifier.doi10.1103/PhysRevA.67.023802en_AU
dc.identifier.urihttp://hdl.handle.net/10072/6303
dc.description.abstractIn the field of atom optics, the basis of many experiments is a two-level atom coupled to a light field. The evolution of this system is governed by a master equation. The irreversible components of this master equation describe the spontaneous emission of photons from the atom. For many applications, it is necessary to minimize the effect of this irreversible evolution. This can be achieved by having a far detuned light field. The drawback of this regime is that making the detuning very large makes the time step required to solve the master equation very small, much smaller than the time scale of any significant evolution. This makes the problem very numerically intensive. For this reason, approximations are used to simulate the master equation, which are more numerically tractable to solve. This paper analyzes four approximations: The standard adiabatic approximation, a more sophisticated adiabatic approximation (not used before), a secular approximation, and a fully quantum dressed-state approximation. The advantages and disadvantages of each are investigated with respect to accuracy, complexity, and the resources required to simulate. In a parameter regime of particular experimental interest, only the sophisticated adiabatic and dressed-state approximations agree well with the exact evolution.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.format.extent248455 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherThe American Physical Societyen_US
dc.publisher.placeUSAen_US
dc.publisher.urihttp://prola.aps.org/en_AU
dc.relation.ispartofpagefrom023802.1en_US
dc.relation.ispartofpageto023802.11en_US
dc.relation.ispartofjournalPhysical Review A (Atomic, Molecular and Optical Physics)en_US
dc.relation.ispartofvolume67en_US
dc.subject.fieldofresearchcode240201en_US
dc.titleApproximate master equations for atom optics.en_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.rights.copyrightCopyright 2003 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_AU
gro.date.issued2003
gro.hasfulltextFull Text


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