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Classical and thermodynamic work fluctuations

2009/05/24 by Mamata Sahoo, A. M. Jayannavar, A. M Jayannavar · 1 citation
Chemistry · Engineering · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Chemistry #Classical mechanics #Computer science #Non-equilibrium thermodynamics #Nonlinear system #Physical chemistry #Physics #Quantum mechanics #Statistical physics #Steady state (chemistry) #Thermal Radiation and Cooling Technologies #Thermodynamic equilibrium #Thermodynamics #Trajectory #Transient (computer programming) #Work (physics) #physics.class-ph #stochastic dynamics and bifurcation

paper · pdf · doi:10.1007/s12648-010-0134-8

Based on the talk presented by Mamata Sahoo at the Condensed Matter Days-Aug. 2008 held at Viswavarati University, Kolkata. 19 pages, 8 figures

arxiv created 2009/05/24 · openalex publication_date 2010/10/01 · arxiv updated 2015/05/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We have studied the nature of classical work (Wc) and thermodynamic work (W) fluctuations in systems driven out of equilibrium both in transient and time periodic steady state. As the observation time of trajectory increases, we show that the number of trajectories which exhibit excursions away from the typical behaviour i.e., Wc<0, W<ΔF and dissipated heat Q<0 decreases as anticipated for macroscopic time scales. Analytical expressions for such trajectories are obtained. Trajectory for which Wc<0 may not correspond to W<ΔF or Q<0. The applicability of steady state fluctuation theorems are discussed in our linear as well as nonlinear models.

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