Fluctuation relations with intermittent non-Gaussian variables

Details Fluctuation relations with intermittent non-Gaussian variables Fluctuation relations with intermittent non-Gaussian variables

2011-12-12

arxiv.org/abs/1112.2616v1

Phy. Rev. E 84, 061118 (2011)

Physics

Condensed Matter

Statistical Mechanics

7 pages, 3 figures

Scientific paper

10.1103/PhysRevE.84.061118

Non-equilibrium stationary fluctuations may exhibit a special symmetry called fluctuation relations (FR). Here, we show that this property is always satisfied by the subtraction of two random and independent variables related by a thermodynamic-like change of measure. Taking one of them as a modulated Poisson process, it is demonstrated that intermittence and FR are compatibles properties that may coexist naturally. Strong non-Gaussian features characterize the probability distribution and its generating function. Their associated large deviation functions (LDF) develop a kink at the origin and a plateau regime respectively. Application of this model in different stationary nonequilibrium situations is discussed.

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