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Nonlinear heat conduction in Coulomb-blockaded quantum dots

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arxiv 1411.5231 v1 pith:UUTVITKU submitted 2014-11-19 cond-mat.mes-hall cond-mat.stat-mech

Nonlinear heat conduction in Coulomb-blockaded quantum dots

classification cond-mat.mes-hall cond-mat.stat-mech
keywords casedotsheatnonlinearquantumacrossanalyzebeyond
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We analyze the heat current flowing across interacting quantum dots within the Coulomb blockade regime. Power can be generated by either voltage or temperature biases. In the former case, we find nonlinear contributions to the Peltier effect that are dominated by conventional Joule heating for sufficiently high voltages. In the latter case, the differential thermal conductance shows maxima or minima depending on the energy level position. Furthermore, we discuss departures from the Kelvin-Onsager reciprocity relation beyond linear response.

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