Nonlinear Sciences – Pattern Formation and Solitons
Scientific paper
2007-04-09
Phys. Rev. E 77, 031114 (2008)
Nonlinear Sciences
Pattern Formation and Solitons
Accepted to Phys. Rev. E. v5: Further clarified terminology; expanded discussion; added references
Scientific paper
10.1103/PhysRevE.77.031114
The present paper introduces a linear reformulation of the Kuramoto model describing a self-synchronizing phase transition in a system of globally coupled oscillators that in general have different characteristic frequencies. The reformulated model provides an alternative coherent framework through which one can analytically tackle synchronization problems that are not amenable to the original Kuramoto analysis. It allows one to solve explicitly for the synchronization order parameter and the critical point of 1) the full phase-locking transition for a system with a finite number of oscillators (unlike the original Kuramoto model, which is solvable implicitly only in the mean-field limit) and 2) a new class of continuum systems. It also makes it possible to probe the system's dynamics as it moves towards a steady state. While discussion in this paper is restricted to systems with global coupling, the new formalism introduced by the linear reformulation also lends itself to solving systems that exhibit local or asymmetric coupling.
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