Controlling spatiotemporal chaos in oscillatory reaction-diffusion systems by time-delay autosynchronization

Details Controlling spatiotemporal chaos in oscillatory reaction-diffusion systems by time-delay autosynchronization Controlling spatiotemporal chaos in oscillatory reaction-diffusion systems by time-delay autosynchronization

2004-03-22

arxiv.org/abs/nlin/0403045v1

Nonlinear Sciences

Chaotic Dynamics

19 pages, 10 figures submitted to Physica D

Scientific paper

10.1016/j.physd.2004.08.012

Diffusion-induced turbulence in spatially extended oscillatory media near a supercritical Hopf bifurcation can be controlled by applying global time-delay autosynchronization. We consider the complex Ginzburg-Landau equation in the Benjamin-Feir unstable regime and analytically investigate the stability of uniform oscillations depending on the feedback parameters. We show that a noninvasive stabilization of uniform oscillations is not possible in this type of systems. The synchronization diagram in the plane spanned by the feedback parameters is derived. Numerical simulations confirm the analytical results and give additional information on the spatiotemporal dynamics of the system close to complete synchronization.

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