Heat fluctuations in equilibrium
arXiv:2009.03165 · doi:10.1088/1742-5468/aba7b2
Abstract
The characteristic function for heat fluctuations in a non equilibrium system is characterised by a large deviation function whose symmetry gives rise to a fluctuation theorem. In equilibrium the large deviation function vanishes and the heat fluctuations are bounded. Here we consider the characteristic function for heat fluctuations in equilibrium, constituting a sub-leading correction to the large deviation behaviour. Modelling the system by an oscillator coupled to an explicit multi-oscillator heat reservoir we evaluate the characteristic function.
15 pages, 1 figure, latex document, received 29 April 2020, accepted 14. July 2020, published 24 August 2020
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