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arXiv · 1109.1793

Incomplete current fluctuation theorems for a four-terminal model

Thilo Krause·Gernot Schaller·Tobias Brandes
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Abstract

We demonstrate the validity of the current fluctuation theorem for a double quantum dot surrounded by four terminals within the Born-, Markov- and secular approximations beyond the Coulomb-blockade regime. The electronic tunneling to two fermionic contacts conserves the total number of electrons, and the internal tunneling is phonon-assisted by two bosonic baths. Adapted choice of thermodynamic parameters between the baths may drive a current against an existing electric or thermal gradient. We study the apparent violation of the fluctuation theorem when only some of the energy and matter currents are monitored.

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Thilo Krause, Gernot Schaller, Tobias Brandes. 2011-09-08. Incomplete current fluctuation theorems for a four-terminal model. https://doi.org/10.1103/physrevb.84.195113

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