Heat fluctuations in Brownian transducers

2006/02/28 by Àlex Gómez-Marín, A. Gomez-Marin, J. M. Sancho · 26 citations
Engineering · Mathematics · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Brownian motion #Coupling (piping) #Domain (mathematical analysis) #Engineering #Field-Flow Fractionation Techniques #Fluctuation theorem #Function (biology) #Heat Transfer and Optimization #Heat exchanger #Mathematical analysis #Mathematics #Mechanical engineering #Non-equilibrium thermodynamics #Physics #Quantum mechanics #Statistical physics #Thermal fluctuations #Thermodynamics #Transducer #Work (physics) #cond-mat.stat-mech

paper · pdf · doi:10.1103/physreve.73.045101

published in Physical Review E 73(4), 045101 (American Physical Society) · Comments are welcome

arxiv created 2006/03/15 · openalex publication_date 2006/04/11 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

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.

Citations

• Integral fluctuation theorem for the housekeeping heat
• Distribution of work in isothermal nonequilibrium processes
• Power and Heat Fluctuation Theorems for Electric Circuits
• Dynamical Ensembles in Nonequilibrium Statistical Mechanics
• Steady-State Thermodynamics of Langevin Systems
• Extension of the Fluctuation Theorem
• Classical and Quantum Fluctuation Theorems for Heat Exchange
• The Nonequilibrium Thermodynamics of Small Systems

Cited by

• Thermal Ratchet Effect in Confining Geometries
• Fluctuations of the heat exchanged between two quantum spin chains