Nonequilibrium interactions between two quantum circuits

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dc.creatorKhrapai, V. S.
dc.creatorLudwig, S.
dc.creatorKotthaus, J. P.
dc.creatorTranitz, H. P.
dc.creatorWegscheider, W.
dc.date2008-05-06
dc.date2008-11-25
dc.date.accessioned2026-07-07T10:20:24Z
dc.date.available2026-07-07T10:20:24Z
dc.descriptionWe briefly overview our recent results on nonequilibrium interactions between neighboring electrically isolated nanostructures. One of the nanostructures is represented by an externally biased quantum point contact (drive-QPC), which is used to supply energy quanta to the second nanostructure (detector). Absorption of these nonequilibrium quanta of energy generates a dc-current in the detector, or changes its differential conductance. We present results for a double quantum dot, a single quantum dot or a second QPC placed in the detector circuit. In all three cases a detection of quanta with energies up to ~1 meV is possible for bias voltages across the drive-QPC in the mV range. The results are qualitatively consistent with an energy transfer mechanism based on nonequilibrium acoustic phonons.
dc.descriptionMauterndorf Winterschool-2008 proceedings; as published
dc.identifierhttps://arxiv.org/abs/0805.0724
dc.identifierhttp://arxiv.org/abs/0805.0724
dc.identifierJ. Phys.: Condens. Matter 20 (2008) 454205
dc.identifierdoi:10.1088/0953-8984/20/45/454205
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/174834
dc.subjectMesoscale and Nanoscale Physics
dc.titleNonequilibrium interactions between two quantum circuits
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