Critical fluctuations of relaxation events in a stochastic reaction diffusion system
Motivated from recent extensive studies of critical fluctuations of dynamical events in glassy systems, we study relaxation events to the stable state in a simple stochastic reaction diffusion system. We demonstrate that at the onset of a saddle node bifurcation, the pattern exhibits the “critical nature” at some time starting from a spatially homogeneous state. We also calculate the exponents characterizing the criticality (almost) exactly. The relevance to studies of glassy systems is briefly discussed.
Université de Tokyo
Speaker
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Shin-ichi Sasa
