Abstract
We have studied work fluctuation behaviour in the presence of internal thermal noise as well as external coloured noise. The external coloured noise may have both Gaussian or non-Gaussian characteristics. We have investigated the dependence of position and work fluctuations on the properties of both the environments. For thermal noise driven systems, there is a maximum in the variation of mean square fluctuation of work (MSFW) as a function of damping strength at intermediate times, while at asymptotic long times MSFW monotonically increases in the same damping regime. But for external noise, MSFW monotonically decreases as a function of damping strength at intermediate times, whereas at long times it becomes almost independent of damping strength.Another interesting observation is that for the external noise driven systems, noise correlation time and damping strength have similar roles in the dynamics.
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Sen, M.K., Baura, A. & Bag, B.C. Work fluctuation theorem for coloured noise driven open systems. Eur. Phys. J. B 83, 381 (2011). https://doi.org/10.1140/epjb/e2011-20199-5
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DOI: https://doi.org/10.1140/epjb/e2011-20199-5