Globally coupled stochastic two-state oscillators: Synchronization of infinite and finite arrays

Alexandre Rosas, Daniel Elias Escaff, Italo'Ivo Lima Dias Pinto, Katja Lindenberg

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9 Scopus citations

Abstract

We consider arrays of the simplest two-state (on-off) stochastic units. The units are Markovian, that is, the transitions between the two states occur at a given rate. We construct arrays of N globally coupled binary units, and observe a remarkable richness of behavior as the control parameter that measures the coupling strength is increased. In the mean field limit as we consider the four simplest polynomial forms of coupling that lead to bifurcations, and characterize the associated phase transitions of the arrays. When N is finite there are fluctuations about the well-defined steady states of the infinite arrays. We study the nature of these fluctuations and their effects on the bifurcations in all cases by constructing the appropriate Langevin equations and the associated Fokker-Planck equations.

Original languageEnglish
Article number095001
JournalJournal of Physics A: Mathematical and Theoretical
Volume49
Issue number9
DOIs
StatePublished - 21 Jan 2016

Bibliographical note

Publisher Copyright:
© 2016 IOP Publishing Ltd.

Keywords

  • coupled arrays
  • stochastic
  • synchronization
  • two-state oscillators

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