Transition from homogeneous to inhomogeneous steady states in oscillators under cyclic coupling

Bidesh K. Bera, Chittaranjan Hens, Sourav K. Bhowmick, Pinaki Pal, Dibakar Ghosh

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

We report a transition from homogeneous steady state to inhomogeneous steady state in coupled oscillators, both limit cycle and chaotic, under cyclic coupling and diffusive coupling as well when an asymmetry is introduced in terms of a negative parameter mismatch. Such a transition appears in limit cycle systems via pitchfork bifurcation as usual. Especially, when we focus on chaotic systems, the transition follows a transcritical bifurcation for cyclic coupling while it is a pitchfork bifurcation for the conventional diffusive coupling. We use the paradigmatic Van der Pol oscillator as the limit cycle system and a Sprott system as a chaotic system. We verified our results analytically for cyclic coupling and numerically check all results including diffusive coupling for both the limit cycle and chaotic systems.

Original languageEnglish
Pages (from-to)130-134
Number of pages5
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume380
Issue number1-2
DOIs
StatePublished - 8 Jan 2016
Externally publishedYes

Keywords

  • Cyclic coupling
  • Homogeneous steady state
  • Inhomogeneous steady state
  • Pitchfork bifurcation
  • Transcritical bifurcation

ASJC Scopus subject areas

  • General Physics and Astronomy

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