Abstract :
[en] The widely debated feasibility of thermodynamic machines achieving Carnot efficiency
at finite power has been convincingly dismissed. Yet, the common wisdom that efficiency can only
be optimal in the limit of infinitely slow processes overlooks the dual scenario of infinitely fast
processes. We corroborate that efficient engines at divergent power output are not theoretically impossible,
framing our claims within the theory of Stochastic Thermodynamics. We inspect the case
of an electronic quantum dot coupled to three particle reservoirs to illustrate the physical rationale.
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