Volume 61, Number 1, January 2003
|Page(s)||27 - 33|
|Published online||01 January 2003|
Persistence at the onset of spatio-temporal intermittency in coupled map lattices
The Institute of Mathematical Sciences, CIT Campus
Taramani, Chennai 600 113, India
Accepted: 21 October 2002
We study persistence in coupled circle map lattices at the onset of spatio-temporal intermittency, an onset which marks a continuous transition, in the universality class of directed percolation, to a unique absorbing state. We obtain a local persistence exponent of at this transition, a value which closely matches values for obtained in stochastic models of directed percolation. This result constitutes suggestive evidence for the universality of persistence exponents at the directed percolation transition. Given that many experimental systems are modelled accurately by coupled map lattices, experimental measurements of this persistence exponent may be feasible.
PACS: 05.45.-a – Nonlinear dynamics and nonlinear dynamical systems / 02.50.Ey – Stochastic processes / 05.45.Ra – Coupled map lattices
© EDP Sciences, 2003
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