Effect of inelastic scattering on spin entanglement detection through current noise

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dc.creatorSan-Jose, Pablo
dc.creatorPrada, Elsa
dc.date2006-01-17
dc.date2006-07-13
dc.date.accessioned2026-07-07T06:57:36Z
dc.date.available2026-07-07T06:57:36Z
dc.descriptionWe study the effect of inelastic scattering on the spin entanglement detection and discrimination scheme proposed by Egues, Burkard, and Loss [Phys. Rev. Lett. \textbf{89}, 176401 (2002)]. The finite-backscattering beam splitter geometry is supplemented by a phenomenological model for inelastic scattering, the charge-conserving voltage probe model, conveniently generalized to deal with entangled states. We find that the behavior of shot-noise measurements in one of the outgoing leads remains an efficient way to characterize the nature of the non-local spin correlations in the incoming currents for an inelastic scattering probability up to 50%. Higher order cumulants are analyzed, and are found to contain no additional useful information on the spin correlations. The technique we have developed is applicable to a wide range of systems with voltage probes and spin correlations.
dc.description14 pages, 6 figures, updated with published version (appendix added)
dc.identifierhttps://arxiv.org/abs/cond-mat/0601365
dc.identifierhttp://arxiv.org/abs/cond-mat/0601365
dc.identifierPhys. Rev. B 74, 045305 (2006)
dc.identifierdoi:10.1103/PhysRevB.74.045305
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/107030
dc.subjectMesoscale and Nanoscale Physics
dc.titleEffect of inelastic scattering on spin entanglement detection through current noise
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