Wednesday, July 3, 2013

1307.0094 (Giada Basile et al.)

Energy Diffusion in Harmonic System with Conservative Noise    [PDF]

Giada Basile, Stefano Olla
We 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.
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