Lyapunov analysis captures the collective dynamics of large chaotic systems

Kazumasa A. Takeuchi, Francesco Ginelli, Hugues Chate

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32 Citations (Scopus)


We show, using generic globally coupled systems, that the collective dynamics of large chaotic systems is encoded in their Lyapunov spectra: most modes are typically localized on a few degrees of freedom, but some are delocalized, acting collectively on the trajectory. For globally coupled maps, we show, moreover, a quantitative correspondence between the collective modes and some of the so-called Perron-Frobenius dynamics. Our results imply that the conventional definition of extensivity must be changed as soon as collective dynamics sets in.

Original languageEnglish
Article number154103
Number of pages4
JournalPhysical Review Letters
Issue number15
Publication statusPublished - 9 Oct 2009


  • globally coupled maps
  • characteristic exponents
  • large numbers
  • limit
  • oscillators
  • law

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