Fluctuations in the relaxation dynamics of mixed chaotic systems
arXiv:1210.3773 · doi:10.1103/PhysRevE.87.012918
Abstract
The relaxation dynamics in mixed chaotic systems are believed to decay algebraically with a universal decay exponent that emerges from the hierarchical structure of the phase space. Numerical studies, however, yield a variety of values for this exponent. In order to reconcile these result we consider an ensemble of mixed chaotic systems approximated by rate equations, and analyze the fluctuations in the distribution of Poincare recurrence times. Our analysis shows that the behavior of these fluctuations, as function of time, implies a very slow convergence of the decay exponent of the relaxation.
12 pages, 10 figures
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