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arXiv · 1409.3514

Universal theory of efficiency fluctuations

Gatien Verley·Tim Willaert·Christian Van den Broeck·Massimiliano Esposito
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Abstract

Using the fluctuation theorem supplemented with geometric arguments, we derive universal features of the (long-time) efficiency fluctuations for thermal and isothermal machines operating under steady or periodic driving, close or far from equilibrium. In particular, the long-time probability for observing a reversible efficiency in a given engine is identical to that for the same engine working under the time-reversed driving. When the driving is symmetric, this reversible efficiency becomes the least probable.

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Gatien Verley, Tim Willaert, Christian Van den Broeck, Massimiliano Esposito. 2014-09-11. Universal theory of efficiency fluctuations. https://doi.org/10.1103/physreve.90.052145

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