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American Physical Society, Physical review E: Statistical physics, plasmas, fluids, and related interdisciplinary topics, 2(68), 2003

DOI: 10.1103/physreve.68.026211

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Fractal entropy of a chain of nonlinear oscillators

Journal article published in 2002 by A. Scardicchio ORCID, P. Facchi, S. Pascazio
This paper is available in a repository.
This paper is available in a repository.

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Abstract

We study the time evolution of a chain of nonlinear oscillators. We focus on the fractal features of the spectral entropy and analyze its characteristic intermediate timescales as a function of the nonlinear coupling. A Brownian motion is recognized, with an analytic power-law dependence of its diffusion coefficient on the coupling. ; Comment: 6 pages, 3 figures, revised version to appear in Phys. Rev. E