Synchronization in driven versus autonomous coupled chaotic
maps
Autores: M. Pineda, M.G. Cosenza.
Referencia: Physical Review E, 71, 057201, (2005)
Abstract
The phenomenon of synchronization occurring in a locally
coupled map lattice subject to an external drive is compared
to the synchronization process in an autonomous coupled map
system with similar local couplings plus a global interaction.
It is shown that chaotic synchronized states in both systems
are equivalent, but the collective states arising after the
chaotic synchronized state becomes unstable can be different
in these two systems. It is found that the external drive
induces chaotic synchronization as well as synchronization
of unstable periodic orbits of the local dynamics in the
driven lattice. On the other hand, the addition of a global
interaction in the autonomous system allows for chaotic
synchronization that is not possible in a large coupled map
system possessing only local couplings.
|