Thermoelectric efficiency at maximum power in a quantum dot

Abstract

We identify the operational conditions for maximum power of a\nnanothermoelectric engine consisting of a single quantum level embedded between\ntwo leads at different temperatures and chemical potentials. The corresponding\nthermodynamic efficiency agrees with the Curzon-Ahlborn expression up to\nquadratic terms in the gradients, supporting the thesis of universality beyond\nlinear response.\n