Aging in a Model of Self-Organized Criticality
arXiv:cond-mat/9702054 · doi:10.1103/PhysRevLett.79.889
Abstract
Temporal autocorrelation functions for avalanches in the Bak-Sneppen model display aging behavior similar to glassy systems. Numerical simulations show that they decay as power laws with two distinct regimes separated by a time scale which is the waiting time, or age, of the avalanche. Thus, time-translational invariance is dynamically broken. The critical exponent of the initial decay is that of the familiar stationary dynamics while a new critical exponent for the late-time behavior appears. This new exponent characterizes a non-stationary regime that has not been previously considered in the context of self-organized criticality.
4 pages RevTex, 2 ps-figures included
References in corpus (3)
Cited by in corpus (21)
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