Long Chaotic Transients in Complex Networks

Abstract

We show that long chaotic transients dominate the dynamics of randomly diluted networks of pulse-coupled oscillators. This contrasts with the rapid convergence towards limit cycle attractors found in networks of globally coupled units. The lengths of the transients strongly depend on the network connectivity and varies by several orders of magnitude, with maximum transient lengths at intermediate connectivities. The dynamics of the transient exhibits a novel form of robust synchronization. An approximation to the largest Lyapunov exponent characterizing the chaotic nature of the transient dynamics is calculated analytically.

4 pages; 5 figures

References in corpus (5)

• Statistical mechanics of complex networks
• Evolution of networks
• Coexistence of regular and irregular dynamics in complex networks of pulse-coupled oscillators
• Prevalence of unstable attractors in networks of pulse-coupled oscillators
• Unstable attractors induce perpetual synchronization and desynchronization

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