title: Anomalous relaxation and self-organization in nonequilibrium processes.
abstract: We study thermal relaxation in ordered arrays of coupled nonlinear elements with external driving. We find that our model exhibits dynamic self-organization manifested in a universal stretched-exponential form of relaxation. We identify two types of self-organization, cooperative and anticooperative, which lead to fast and slow relaxation, respectively. We give a qualitative explanation for the behavior of the stretched exponent in different parameter ranges. We emphasize that this is a system exhibiting stretched-exponential relaxation without explicit disorder or frustration.
authors: Department of Mathematical Sciences, Rensselaer Polytechnic Institute, Troy, New York 12180, USA.
authors: I
authors: I
authors: Fatkullin
authors: K
authors: K
authors: Kladko
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authors: Mitkov
authors: A R
authors: AR
authors: Bishop