Nonequilibrium transport through parallel double quantum dots in the Kondo regime

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dc.creatorYang, Y. -F.
dc.creatorHeld, K.
dc.date2005-02-17
dc.date2006-01-27
dc.date.accessioned2026-07-07T06:37:32Z
dc.date.available2026-07-07T06:37:32Z
dc.descriptionWe extend a perturbative, nonequilibrium renormalization group approach to multi-orbital systems and apply it for studying transport through two parallel quantum dots coupled electrostatically. In general, the conductance shows pronounced Kondoesque peaks at three voltages. One of these peaks disappears if, as in some experiments, one of the dots is decoupled from one of the two leads. For an asymmetric coupling to the leads, also negative differential conductances are possible. This is a genuine nonequilibrium effect, accompanying the Kondoesque peaks. Moreover, a criterion to distinguish spin and orbital Kondo effect in such a system is discussed.
dc.description13 pages, 13 figures; 2nd version as published in Phys. Rev. B with an extended outlook paragraph and some additional references
dc.identifierhttps://arxiv.org/abs/cond-mat/0502420
dc.identifierhttp://arxiv.org/abs/cond-mat/0502420
dc.identifierPhys. Rev. B 72, 235308 (2005)
dc.identifierdoi:10.1103/PhysRevB.72.235308
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/100422
dc.subjectStrongly Correlated Electrons
dc.subjectMesoscale and Nanoscale Physics
dc.titleNonequilibrium transport through parallel double quantum dots in the Kondo regime
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