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arXiv · 1904.04325

Uphill migration in coupled driven particle systems

Emilio N. M. Cirillo·Matteo Colangeli·Ronald Dickman
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Abstract

In particle systems subject to a nonuniform drive, particle migration is observed from the driven to the non--driven region and vice--versa, depending on details of the hopping dynamics, leading to apparent violations of Fick's law and of steady--state thermodynamics. We propose and discuss a very basic model in the framework of independent random walkers on a pair of rings, one of which features biased hopping rates, in which this phenomenon is observed and fully explained.

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Emilio N. M. Cirillo, Matteo Colangeli, Ronald Dickman. 2019-05-08. Uphill migration in coupled driven particle systems. https://doi.org/10.1088/1742-5468%2Fab2902

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