3/4 Fractional superdiffusion of energy in a system of harmonic oscillators perturbed by a conservative noise
published by Cedric Bernardin
in 2014
in Physics
and research's language is
English
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Abstract in English
We consider a harmonic chain perturbed by an energy conserving noise and show that after a space-time rescaling the energy-energy correlation function is given by the solution of a skew-fractional heat equation with exponent 3/4.