Europhys. Lett.
Volume 67, Number 2, July 2004
Page(s) 328 - 333
Section Interdisciplinary physics and related areas of science and technology
Published online 01 July 2004
Europhys. Lett., 67 (2) , pp. 328-333 (2004)
DOI: 10.1209/epl/i2003-10287-7

Evolution to a small-world network with chaotic units

P. Gong and C. van Leeuwen

Laboratory for Perceptual Dynamics, Brain Science Institute Riken, The Institute of Physical and Chemical Research 2-1, Hirosawa, Wako-Shi, Saitama, 351-0198, Japan

(Received 18 August 2003; accepted in final form 14 May 2004)

We investigated the mutually supporting role of chaotic activity and evolving structure in a complex network. An initially randomly coupled network with chaotic activation is adaptively rewired according to dynamic coherence between its units. The evolving network reaches a small-world structure. Meanwhile, collective network activity tends to an intermittent dynamic clustering regime. Spontaneous chaotic activity and adaptively evolving structure jointly enhance signal propagation capacity.

89.75.Hc - Networks and genealogical trees.
05.45.Xt - Synchronization; coupled oscillators.
87.18.Sn - Neural networks.

© EDP Sciences 2004