Energy Diffusion in Harmonic System with Conservative Noise [PDF]
Giada Basile, Stefano OllaWe prove diffusive behaviour of the energy fluctuations in a system of harmonic oscillators with a stochastic perturbation of the dynamics that conserves energy and momentum. The results concern pinned systems or lattice dimension $d\ge 3$, where the thermal diffusivity is finite.View original: http://arxiv.org/abs/1307.0094
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