At the Curie-Weiss temperature-driven transition, heat current noise diverges with system size, while at the field-driven transition it diverges only near, not at, the transition point.
Moments of Entropy Production in Dissipative Devices
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We characterize the possible moments of entropy production for general overdamped Markovian systems. We find a general formulation of the problem, and derive a new necessary condition between the second and third moment. We determine all possible first, second and third moments of entropy production for a white noise process. As a consequence, we obtain a lower bound for the skewness of the current fluctuations in dissipative devices such as transistors, thereby demonstrating that the Gaussianity assumption widely used in electronic engineering is thermodynamically inconsistent.
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Critical heat current fluctuations in Curie-Weiss model in and out of equilibrium
At the Curie-Weiss temperature-driven transition, heat current noise diverges with system size, while at the field-driven transition it diverges only near, not at, the transition point.