Related papers: Optimal energy conversion through anti-adiabatic driving breaking time-reversal symmetry

Optimal energy conversion through anti-adiabatic driving breaking time-reversal symmetry

URL: http://arxiv.org/abs/2009.10904v1
Date: Wed, 23 Sep 2020 02:17:33 GMT
Title: Optimal energy conversion through anti-adiabatic driving breaking time-reversal symmetry
Authors: Loris Maria Cangemi, Matteo Carrega, Antonio De Candia, Vittorio Cataudella, Giulio De Filippis, Maura Sassetti, Giuliano Benenti
Abstract summary: We show that it is possible to approach the ideal energy conversion efficiency $eta=1$, with finite output power and vanishingly small relative power fluctuations. The simultaneous realization of all the three desiderata of a heat engine is possible thanks to the breaking of time-reversal symmetry.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Starting with Carnot engine, the ideal efficiency of a heat engine has been associated with quasi-static transformations and vanishingly small output power. Here, we exactly calculate the thermodynamic properties of a isothermal heat engine, in which the working medium is a periodically driven underdamped harmonic oscillator, focusing instead on the opposite, anti-adiabatic limit, where the period of a cycle is the fastest time scale in the problem. We show that in that limit it is possible to approach the ideal energy conversion efficiency $\eta=1$, with finite output power and vanishingly small relative power fluctuations. The simultaneous realization of all the three desiderata of a heat engine is possible thanks to the breaking of time-reversal symmetry. We also show that non-Markovian dynamics can further improve the power-efficiency trade-off.

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