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00925njm 22002777a 4500 dc Gómez Marín, Alejandro author Sancho, José M. author 2011-07-07T12:52:13Z 2011-07-07T12:52:13Z 2006 The heat fluctuation probability distribution function in Brownian transducers operating between two heat reservoirs is studied. We find, both analytically and numerically, that the recently proposed fluctuation theorem for heat exchange [C. Jarzynski and D. K. Wojcik, Phys. Rev. Lett. 92, 230602 (2004)] has to be applied carefully when the coupling mechanism between both baths is considered. We also conjecture how to extend such a relation when an external work is present. Física estadística Termodinàmica Sistemes dinàmics diferenciables Statistical physics Thermodynamics Differentiable dynamical systems Heat fluctuations in Brownian transducers