Non-Markovian decoherence: A critique of the two-level approximation

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dc.citation.epagee584en_US
dc.citation.issueNumber1en_US
dc.citation.spagee579en_US
dc.citation.volumeNumber300en_US
dc.contributor.authorHakioǧlu T.en_US
dc.contributor.authorSavran, K.en_US
dc.contributor.authorSevinçli, H.en_US
dc.contributor.authorMeşe, E.en_US
dc.date.accessioned2016-02-08T10:19:31Z
dc.date.available2016-02-08T10:19:31Z
dc.date.issued2006en_US
dc.departmentDepartment of Physicsen_US
dc.description.abstractThe environmental decoherence in multilevelled systems in the context of two-level approximation is examined. It is found that the environmental temperature plays a minor role in the magnitudes of the decoherence rates whereas, the system-environment coupling and the environmental energy spectrum are dominant. Particularly, the latter is important in zero temperature quantum fluctuations and/or the nonequilibrium noise sources due to the large range of energies present in the environmental modes. Decoherence is found to be dominated by the short time nonresonant processes and this observation severely questions the use of the two-levelled models on decoherence.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T10:19:31Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2006en
dc.identifier.doi10.1016/j.jmmm.2005.10.246en_US
dc.identifier.eissn1873-4766
dc.identifier.issn0304-8853
dc.identifier.urihttp://hdl.handle.net/11693/23810
dc.language.isoEnglishen_US
dc.publisherElsevier B.V.en_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.jmmm.2005.10.246en_US
dc.source.titleJournal of Magnetism and Magnetic Materialsen_US
dc.subjectDecoherenceen_US
dc.subjectDephasingen_US
dc.subjectTwo-level approximationen_US
dc.subjectAcoustic noiseen_US
dc.subjectApproximation theoryen_US
dc.subjectMagnetic couplingsen_US
dc.subjectThermoanalysisen_US
dc.subjectDecoherenceen_US
dc.subjectDephasingen_US
dc.subjectTwo-level approximationen_US
dc.subjectMagnetic field effectsen_US
dc.titleNon-Markovian decoherence: A critique of the two-level approximationen_US
dc.typeArticleen_US

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