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arXiv · 0804.3630

Ratcheting Heat Flux against a Thermal Bias

Nianbei Li·Peter Hanggi·Baowen Li
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Abstract

Merely rocking the temperature in one heat bath can direct a steady heat flux from cold to hot against a non-zero thermal bias in stylized nonlinear lattice junctions that are sandwiched between two heat baths. Likewise, for an average zero-temperature difference between the two contacts a net, ratchet-like heat flux emerges. Computer simulations show that this very heat flux can be controlled and reversed by suitably tailoring the frequency ($\lesssim$ 100 MHz) of the alternating temperature field.

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Nianbei Li, Peter Hanggi, Baowen Li. 2008-12-01. Ratcheting Heat Flux against a Thermal Bias. https://doi.org/10.1209/0295-5075/84/40009

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