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  • Title: Efficiency Statistics and Bounds for Systems with Broken Time-Reversal Symmetry.
    Author: Jiang JH, Agarwalla BK, Segal D.
    Journal: Phys Rev Lett; 2015 Jul 24; 115(4):040601. PubMed ID: 26252673.
    Abstract:
    Universal properties of the statistics of stochastic efficiency for mesoscopic time-reversal symmetry broken energy transducers are revealed in the Gaussian approximation. We also discuss how the second law of thermodynamics restricts the statistics of stochastic efficiency. The tight-coupling limit becomes unfavorable, characterized by an infinitely broad distribution of efficiency at all times, when time-reversal symmetry breaking leads to an asymmetric Onsager response matrix. The underlying physics is demonstrated through the quantum Hall effect and further elaborated in a triple-quantum-dot three-terminal thermoelectric engine.
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