Rafael Sánchez, Markus Büttiker
We consider a quantum dot system whose charge fluctuations are monitored by a quantum point contact allowing for the detection of both charge and transferred heat statistics. Our system consists of two nearby conductors that exchange energy via Coulomb interaction. In interfaces consisting of capacitively coupled quantum dots, energy transfer is discrete. In the presence of hot spots, we predict gate dependent deviations away from a fluctuation theorem that holds for charge currents in the absence of temperature gradients. A fluctuation theorem holds for coupled dot configurations with heat exchange and no net particle flow.
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http://arxiv.org/abs/1207.2587
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