Origin of coherent structures in a discrete chaotic medium
- Institute for Nonlinear Science, University of California, San Diego, La Jolla, California 92093-0402 (United States)
- GNB, ETS Ingenieria Informatica, Universidad Autonoma de Madrid, 28049 Madrid (Spain)
- Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309 (United States)
Using as an example a large lattice of locally interacting Hindmarsh-Rose chaotic neurons, we disclose the origin of ordered structures in a discrete nonequilibrium medium with fast and slow chaotic oscillations. The origin of the ordering mechanism is related to the appearance of a periodic average dynamics in the group of chaotic neurons whose individual slow activity is significantly synchronized by the group mean field. Introducing the concept of a {open_quotes}coarse grain{close_quotes} as a cluster of neuron elements with periodic averaged behavior allows consideration of the dynamics of a medium composed of these clusters. A study of this medium reveals spatially ordered patterns in the periodic and slow dynamics of the coarse grains that are controlled by the average intensity of the fast chaotic pulsation. {copyright} {ital 1999} {ital The American Physical Society}
- OSTI ID:
- 357285
- Journal Information:
- Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 60, Issue 2; Other Information: PBD: Aug 1999
- Country of Publication:
- United States
- Language:
- English
Similar Records
How to induce multiple delays in coupled chaotic oscillators?
How to induce multiple delays in coupled chaotic oscillators?