Electron Bunching in Stacks of Coupled Quantum Dots

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dc.creatorSánchez, Rafael
dc.creatorKohler, Sigmund
dc.creatorHänggi, Peter
dc.creatorPlatero, Gloria
dc.date2007-06-20
dc.date2008-01-10
dc.date.accessioned2026-07-07T08:53:23Z
dc.date.available2026-07-07T08:53:23Z
dc.descriptionWe study the transport properties of two double quantum dots in a parallel arrangement at temperatures of a few Kelvin. Thereby, we show that decoherence entailed by the substrate phonons affects the shot noise. For asymmetric coupling between the dots and the respective lead, the current noise is sub-Poissonian for resonant tunneling, but super-Poissonian in the vicinity of the resonances. Our results indicate that phonon emission and absorption is responsible for the shot noise enhancement. The observed asymmetry of the peaks at low temperatures stems from spontaneous emission.
dc.description4 pages, 5 figures. Published version
dc.identifierhttps://arxiv.org/abs/0706.2950
dc.identifierhttp://arxiv.org/abs/0706.2950
dc.identifierPhys. Rev. B 77, 035409 (2008)
dc.identifierdoi:10.1103/PhysRevB.77.035409
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/145603
dc.subjectMesoscale and Nanoscale Physics
dc.subjectMaterials Science
dc.titleElectron Bunching in Stacks of Coupled Quantum Dots
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