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Extensive and subextensive chaos in globally coupled dynamical systems. | LitMetric

Extensive and subextensive chaos in globally coupled dynamical systems.

Phys Rev Lett

Service de Physique de l'État Condensé, CEA-Saclay, F-91191 Gif-sur-Yvette, France.

Published: September 2011

AI Article Synopsis

Article Abstract

Using a combination of analytical and numerical techniques, we show that chaos in globally coupled identical dynamical systems, whether dissipative or Hamiltonian, is both extensive and subextensive: their spectrum of Lyapunov exponents is asymptotically flat (thus extensive) at the value λ(0) given by a single unit forced by the mean field, but sandwiched between subextensive bands containing typically O(logN) exponents whose values vary as λ≃λ(∞)+c/logN with λ(∞)≠λ(0).

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http://dx.doi.org/10.1103/PhysRevLett.107.124101DOI Listing

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