title: Fractal entropy of a chain of nonlinear oscillators.
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 time scales 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.
authors.affiliation: Dipartimento di Fisica, Università di Bari, I-70126 Bari, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Scardicchio
authors.forename: P
authors.initials: P
authors.lastname: Facchi
authors.forename: S
authors.initials: S
authors.lastname: Pascazio