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arxiv: 0901.2600 · v1 · submitted 2009-01-17 · ❄️ cond-mat.stat-mech

Universality of efficiency at maximum power

classification ❄️ cond-mat.stat-mech
keywords efficiencypowermaximumuniversalityargumentcouplingdemonstratedeviation
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We investigate the efficiency of power generation by thermo-chemical engines. For strong coupling between the particle and heat flows and in the presence of a left-right symmetry in the system, we demonstrate that the efficiency at maximum power displays universality up to quadratic order in the deviation from equilibrium. A maser model is presented to illustrate our argument.

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