Dynamics of phase singularities in two-dimensional oscillating systems

Christian Elphick, Ehud Meron

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


We study the dynamics of vortices that arise in two-dimensional nonequilibrium systems above a Hopf bifurcation to uniform, temporal oscillations. Evolution equations for the vortex positions and for a global phase field are derived and used to study vortex interactions. We suggest that the interactions need not be purely attractive or repulsive; bound vortex pairs can exist, which either precess around fixed points in the plane, or drift in directions perpendicular to the inter-vortex axes.

Original languageEnglish
Pages (from-to)385-399
Number of pages15
JournalPhysica D: Nonlinear Phenomena
Issue number2-4
StatePublished - 1 Jan 1991
Externally publishedYes

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Condensed Matter Physics
  • Applied Mathematics


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