Statistical electron excitation in a double quantum dot induced by two independent quantum point contacts

Simple item page
dc.creatorGasser, U.
dc.creatorGustavsson, S.
dc.creatorKüng, B.
dc.creatorEnsslin, K.
dc.creatorIhn, T.
dc.creatorDriscoll, D. C.
dc.creatorGossard, A. C.
dc.date2008-08-21
dc.date2009-02-12
dc.date.accessioned2026-07-07T12:40:16Z
dc.date.available2026-07-07T12:40:16Z
dc.descriptionWe investigate experimentally the influence of current flow through two independent quantum point contacts to a nearby double quantum dot realized in a GaAs-AlGaAs heterostructure. The observed current through the double quantum dot can be explained in terms of coupling to a bosonic bath. The temperature of the bath depends on the power generated by the current flow through the quantum point contact. We identify the dominant absorption and emission mechanisms in a double quantum dot as an interaction with acoustic phonons. The experiment excludes coupling of a double quantum dot to shot noise generated by quantum point contact as the dominant mechanism.
dc.description9 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/0808.2905
dc.identifierhttp://arxiv.org/abs/0808.2905
dc.identifierPhys. Rev. B 79, 035303 (2009)
dc.identifierdoi:10.1103/PhysRevB.79.035303
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/219392
dc.subjectMesoscale and Nanoscale Physics
dc.titleStatistical electron excitation in a double quantum dot induced by two independent quantum point contacts
dc.typetext

Files

Collections

arXiv