Noise induced transition from an absorbing phase to a regime of stochastic spatiotemporal intermittency

Details Noise induced transition from an absorbing phase to a regime of stochastic spatiotemporal intermittency Noise induced transition from an absorbing phase to a regime of stochastic spatiotemporal intermittency

1999-05-26

arxiv.org/abs/cond-mat/9905392v1

Phys. Rev. Lett. 85, 3612, (2000)

Physics

Condensed Matter

4 pages, 6 eps figures. Submitted to Phys. Rev. Lett. See for additional information http://imedea.uib.es/

Scientific paper

10.1103/PhysRevLett.85.3612

We introduce a stochastic partial differential equation capable of reproducing the main features of spatiotemporal intermittency (STI). Additionally the model displays a noise induced transition from laminarity to the STI regime. We show by numerical simulations and a mean-field analysis that for high noise intensities the system globally evolves to a uniform absorbing phase, while for noise intensities below a critical value spatiotemporal intermittence dominates. A quantitative computation of the loci of this transition in the relevant parameter space is presented.

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