American Physical Society, Physical review E: Statistical, nonlinear, and soft matter physics, 4(81), 2010
DOI: 10.1103/physreve.81.041106
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We evaluate the efficiency at maximum power of a quantum-dot Carnot heat engine. The universal values of the coefficients at the linear and quadratic order in the temperature gradient are reproduced. Curzon-Ahlborn efficiency is recovered in the limit of weak dissipation.