Coupled Maps on Trees

Details Coupled Maps on Trees Coupled Maps on Trees

1995-05-22

arxiv.org/abs/patt-sol/9505004v1

Nonlinear Sciences

Chaotic Dynamics

latex file (25 pages), 4 figures included. To be published in Phys. Rev. E

Scientific paper

10.1103/PhysRevE.52.2478

We study coupled maps on a Cayley tree, with local (nearest-neighbor) interactions, and with a variety of boundary conditions. The homogeneous state (where every lattice site has the same value) and the node-synchronized state (where sites of a given generation have the same value) are both shown to occur for particular values of the parameters and coupling constants. We study the stability of these states and their domains of attraction. As the number of sites that become synchronized is much higher compared to that on a regular lattice, control is easier to effect. A general procedure is given to deduce the eigenvalue spectrum for these states. Perturbations of the synchronized state lead to different spatio-temporal structures. We find that a mean-field like treatment is valid on this (effectively infinite dimensional) lattice.

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