Heat Fluctuations in Brownian Transducers

Abstract

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 modified when the coupling mechanism between both baths is considered. We also extend such relation when external work is present. Our work fixes the domain of applicability of the theorem in more realistic operating systems.

Comments are welcome

References in corpus (5)

• An Extension of the Fluctuation Theorem
• Stationary and Transient Work-Fluctuation Theorems for a Dragged Brownian Particle
• Integral fluctuation theorem for the housekeeping heat
• Power and heat fluctuation theorems for electric circuits
• Distribution of work in isothermal non-equilibrium processes

Cited by in corpus (8)

• Lower bounds on dissipation upon coarse graining
• Work fluctuations for a Brownian particle between two thermostats
• Large deviations of heat flow in harmonic chains
• Fluctuation theorem for the effusion of an ideal gas
• Thermal ratchet effect in confining geometries
• Hidden entropy production by fast variables
• Transport coefficients for a confined Brownian ratchet operating between two heat reservoirs
• Nonequilibrium steady state thermodynamics and fluctuations for stochastic systems