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dc.contributor.authorRivas, A.
dc.contributor.authorOxtoby, N.P.
dc.contributor.authorHuelga, S.F.
dc.date.accessioned2009-06-01T08:07:15Z
dc.date.available2009-06-01T08:07:15Z
dc.date.issued2009
dc.identifier.citationRivas , A , Oxtoby , N P & Huelga , S F 2009 , ' Stochastic resonance phenomena in spin chains ' , European Physical Journal B: Condensed Matter and Complex Systems , vol. 69 , no. 1 , pp. 51-57 . https://doi.org/10.1140/epjb/e2009-00108-5
dc.identifier.issn1434-6028
dc.identifier.otherPURE: 171172
dc.identifier.otherPURE UUID: 6daf7a4b-eb7b-4f6e-ace7-3b96ca48bc8e
dc.identifier.otherdspace: 2299/3448
dc.identifier.otherScopus: 67649512922
dc.identifier.urihttp://hdl.handle.net/2299/3448
dc.description“The original publication is available at www.springerlink.com”. Copyright Springer. DOI: 10.1140/epjb/e2009-00108-5
dc.description.abstractWe discuss stochastic resonance-like effects in the context of coupled quantum spin systems. We focus here on an information-theoretic approach and analyze the steady state quantum correlations (entanglement) as well as the global correlations in the system when subject to different forms of local decoherence. In the presence of decay, it has been shown that the system displays quantum correlations only when the noise strength is above a certain threshold. We extend this result to the case of a Heisenberg XYZ exchange interaction and revise and clarify the mechanisms underlying this behaviour. In the presence of pure dephasing, we show that the system always remains separable in the steady state. When both types of noise are present, we show that the system can still exhibit entanglement for long times, provided that the pure dephasing rate is not too large.en
dc.language.isoeng
dc.relation.ispartofEuropean Physical Journal B: Condensed Matter and Complex Systems
dc.titleStochastic resonance phenomena in spin chainsen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
rioxxterms.versionofrecordhttps://doi.org/10.1140/epjb/e2009-00108-5
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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