Quantum fluctuation theorem for heat exchange in the strong coupling regime

Details Quantum fluctuation theorem for heat exchange in the strong coupling regime Quantum fluctuation theorem for heat exchange in the strong coupling regime

2011-06-02

arxiv.org/abs/1106.0353v1

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

We study quantum heat exchange in a multi-state impurity coupled to two thermal reservoirs. Allowing for strong system-bath interactions, we show that a steady-state heat exchange fluctuation theorem holds, though the dynamical processes nonlinearly involve the two reservoirs. We accomplish a closed expression for the cumulant generating function, and use it obtain the heat current and its cumulants in a nonlinear thermal junction, the two-bath spin-boson model.

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