Double quantum dot as a probe of nonequilibrium charge fluctuations at the quantum point contact

Details Double quantum dot as a probe of nonequilibrium charge fluctuations at the quantum point contact Double quantum dot as a probe of nonequilibrium charge fluctuations at the quantum point contact

2007-10-12

arxiv.org/abs/0710.2403v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures

Scientific paper

Absorption of energy quanta generated by quantum point contact results in the inelastic current through the double quantum dot placed nearby. In contrast to a single quantum dot, the inelastic current through the double quantum dot is sensitive to the energy dependence of the quantum point contact transmission, which can explain the experimentally observed features. We calculate the inelastic current as a function of microscopic parameters of the circuit.

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