Co-tunneling assisted sequential tunneling in multi-level quantum dots

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dc.creatorAghassi, Jasmin
dc.creatorHettler, Matthias H.
dc.creatorSchön, Gerd
dc.date2008-01-04
dc.date.accessioned2026-07-07T09:41:27Z
dc.date.available2026-07-07T09:41:27Z
dc.descriptionWe investigate the conductance and zero-frequency shot noise of interacting, multi-level quantum dots coupled to leads. We observe that co-tunneling assisted sequential tunneling (CAST) processes play a dominant role in the transition region from Coulomb blockade to sequential tunneling. We analyze for intermediate coupling strength the dependence of the conductance due to CAST processes on temperature, coupling constant, and gate voltage. Remarkably, the width of the CAST transport feature scales only with temperature, but not with the coupling constant. While the onset of inelastic co-tunneling is associated with a super-Poissonian noise, the noise is even stronger above the threshold for CAST processes
dc.description10 pages including 3 color figures
dc.identifierhttps://arxiv.org/abs/0801.0698
dc.identifierhttp://arxiv.org/abs/0801.0698
dc.identifierApplied Physics Letters, Vol. 92, 202101 (2008)
dc.identifierdoi:10.1063/1.2927379
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/161835
dc.subjectMesoscale and Nanoscale Physics
dc.titleCo-tunneling assisted sequential tunneling in multi-level quantum dots
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