Nonequilibrium Extension of Onsager Relations for Thermoelectric Effects of Mesoscopic Conductors

Details Nonequilibrium Extension of Onsager Relations for Thermoelectric Effects of Mesoscopic Conductors Nonequilibrium Extension of Onsager Relations for Thermoelectric Effects of Mesoscopic Conductors

2009-03-05

arxiv.org/abs/0903.0985v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

submitted to Journal of the Physical Society of Japan

Scientific paper

We discuss a consequence of time reversal symmetry on thermoelectric effect in nonequilibrium coherent quantum transport. Starting with a quantum version of the fluctuation theorem, we show that there exist universal relations between the Peltier coefficient and the Seebeck coefficient of general mesoscopic systems with Coulomb interaction in a nonlinear regime. This extended Kelvin-Onsager relation may be used to obtain useful information on heat current, e.g. the nonlinear Peltier coefficient, which is difficult to be measured in a usual setup of experiments, only from electric current measurement.

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