Fluctuation relations with intermittent non-Gaussian variables.
Nonequilibrium stationary fluctuations may exhibit a special symmetry called fluctuation relations (FRs). Here, we show that this property is always satisfied by the subtraction of two random and independent variables related by a thermodynamiclike change of measure. Taking one of them as a modulated Poisson process, it is demonstrated that intermittence and FRs are compatible properties that may coexist naturally. Strong non-Gaussian features characterize the probability distribution and its generating function. Their associated large deviation functions develop a "kink" at the origin and a plateau regime respectively. Application of this model in different stationary nonequilibrium situations is discussed.
Consejo Nacional de Investigaciones Científicas y Técnicas, Centro Atómico Bariloche, Avenida E Bustillo Km 9.5, 8400 Bariloche, Argentina.
Adrián A
AA
Budini
D008962:Models, Theoretical; D016012:Poisson Distribution; D013816:Thermodynamics