Fractal entropy of a chain of nonlinear oscillators
A. Scardicchio, P. Facchi, S. Pascazio
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.
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