Aging and self-organized criticality in driven dissipative systems.
We study the noisy dynamics of a close relative to the original sandpile model. Depending on the type of noise and the time scale of observation, we find stationary fluctuations (similar to self-organized criticality) or an aging dynamics with punctuated equilibria, a decreasing rate of events and reset properties qualitatively similar to those of glassy systems, evolution models, and vibrated granular media.
Sibani
P
P
Fysisk Institut, Syddansk Universitet-Odense Universitet, Odense, Denmark. paolo@planck.fys.ou.dk
Andersen
C M
CM