3 ENERGY DIFFUSION IN HARMONIC SYSTEM WITH CONSERVATIVE NOISE
Giada Basile, Stefano Olla · 2014
Abstract. We prove diffusive behaviour of the energy fluctuations in a system of harmonic oscillators with a stochastic perturbationofthe dynamicsthat conservesenergyand momentum. The results concern pinned systems or lattice dimension d ≥ 3, where the thermal diffusivity is finite. hal-00839712, version 1- 29 Jun 2013 1.