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Aging at the edge of chaos: glassy dynamics and nonextensive statistics

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  • Robledo, A.

Abstract

We go over our finding that the dynamics at the noise-perturbed edge of chaos in logistic maps is comparable to that observed in supercooled liquids close to vitrification. That is, the three major features of glassy dynamics in structural glass formers, two-step relaxation, aging, and a relationship between relaxation time and configurational entropy, are displayed by orbits with vanishing Lyapunov exponent. The known properties in control-parameter space of the noise-induced bifurcation gap play a central role in determining the characteristics of dynamical relaxation at the chaos threshold. Time evolution is obtained from the Feigenbaum RG transformation, it is expressed analytically via q-exponentials, and described in terms of nonextensive statistics.

Suggested Citation

  • Robledo, A., 2004. "Aging at the edge of chaos: glassy dynamics and nonextensive statistics," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 342(1), pages 104-111.
    • Handle: RePEc:eee:phsmap:v:342:y:2004:i:1:p:104-111
    DOI: 10.1016/j.physa.2004.04.065
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