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Aging in a Model of Self-Organized Criticality | | Stefan Boettcher
; Maya Paczuski
; | | Date: |
5 Feb 1997 | | Journal: | Physical Review Letters 79, 889 (1997) | | Subject: | Condensed Matter; Adaptation and Self-Organizing Systems | cond-mat adap-org nlin.AO | | Affiliation: | Clark Atlanta U., U. of Oklahoma, Los Alamos) and Maya Paczuski (U. of Houston | | 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. | | Source: | arXiv, cond-mat/9702054 | | Services: | Forum | Review | PDF | Favorites | |
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