Physics – Condensed Matter – Statistical Mechanics
Scientific paper
1999-07-06
Phys. Rev. Lett. 83, 5054 (1999)
Physics
Condensed Matter
Statistical Mechanics
4 pages, 2 figures
Scientific paper
10.1103/PhysRevLett.83.5054
We introduce a schematic non-linear diffusion model where density fluctuations induce a rich out of equilibrium dynamics. The properties of the model are studied by numerical simulations and analytically in a mean field approximation. At low temperatures and high densities we find a long off-equilibrium glassy region, where the system evolves out of an initially pinned state showing aging and a slow decay of the autocorrelation as an enhanced power law, along with strong spatial heterogeneities and violation of the fluctuation dissipation theorem.
Coniglio Antonio
Corberi Federico
Nicodemi Mario
Piccioni Marina
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