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A spin-boson thermal rectifier

Dvira Segal·Abraham Nitzan
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Abstract

Rectification of heat transfer in nanodevices can be realized by combining the system inherent anharmonicity with structural asymmetry. we analyze this phenomenon within the simplest anharmonic system -a spin-boson nanojunction model. We consider two variants of the model that yield, for the first time, analytical solutions: a linear separable model in which the heat reservoirs contribute additively, and a non-separable model suitable for a stronger system-bath interaction. Both models show asymmetric (rectifying) heat conduction when the couplings to the heat reservoirs are different.

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Dvira Segal, Abraham Nitzan. 2004-05-20. A spin-boson thermal rectifier. https://doi.org/10.1103/physrevlett.94.034301

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