Nonequilibrium Transport through a Kondo Dot: Decoherence Effects

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dc.creatorPaaske, J.
dc.creatorRosch, A.
dc.creatorKroha, J.
dc.creatorWölfle, P.
dc.date2004-01-12
dc.date.accessioned2026-07-07T06:31:22Z
dc.date.available2026-07-07T06:31:22Z
dc.descriptionWe investigate the effects of voltage induced spin-relaxation in a quantum dot in the Kondo regime. Using nonequilibrium perturbation theory, we determine the joint effect of self-energy and vertex corrections to the conduction electron T-matrix in the limit of transport voltage much larger than temperature. The logarithmic divergences, developing near the different chemical potentials of the leads, are found to be cut off by spin-relaxation rates, implying that the nonequilibrium Kondo-problem remains at weak coupling as long as voltage is much larger than the Kondo temperature.
dc.description16 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0401180
dc.identifierhttp://arxiv.org/abs/cond-mat/0401180
dc.identifierPhys. Rev. B 70, 155301 (2004)
dc.identifierdoi:10.1103/PhysRevB.70.155301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/98583
dc.subjectStrongly Correlated Electrons
dc.subjectMesoscale and Nanoscale Physics
dc.titleNonequilibrium Transport through a Kondo Dot: Decoherence Effects
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