Synchronization of oscillators with long range interaction: Phase transition and anomalous finite size effects

M. Marodi, Francesco D'ovidio, T. Vicsek

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Abstract

Synchronization in a lattice of a finite population of phase oscillators with algebraically decaying, non-normalized coupling is studied by numerical simulations. A critical level of decay is found, below which full locking takes place if the population contains a sufficiently large number of elements. For large number of oscillators and small coupling constant, numerical simulations and analytical arguments indicate that a phase transition separating synchronization from incoherence appears at a decay exponent value equal to the number of dimensions of the lattice. In contrast with earlier results on similar systems with normalized coupling, we have indications that for the decay exponent less than the dimensions of the lattice and for large populations, synchronization is possible even if the coupling is arbitarily weak. This finding suggests that in organisms interacting through slowly decaying signals such as light or sound, collective oscillations can always be established if the population is sufficiently large.
Original languageEnglish
JournalPhysical Review E. Statistical, Nonlinear, and Soft Matter Physics
Volume66
Issue number1
Pages (from-to)011109
ISSN1063-651X
DOIs
Publication statusPublished - 2002

Bibliographical note

Copyright (2002) American Physical Society

Keywords

  • RHYTHMS
  • POPULATIONS
  • COUPLED OSCILLATORS
  • LOCKING
  • APPLAUSE

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