Nonlinear Sciences – Adaptation and Self-Organizing Systems
Scientific paper
2011-03-31
Nonlinear Sciences
Adaptation and Self-Organizing Systems
12 pages. 6 figures
Scientific paper
For a system of globally pulse-coupled phase-oscillators, we derive conditions for stability of the completely synchronous state and all possible two-cluster states and explain how the different states are naturally connected via bifurcations. The coupling is modeled using the phase-response-curve (PRC), which measures the sensitivity of each oscillator's phase to perturbations. For large systems with a PRC, which turns to zero at the spiking threshold, we are able to find the parameter regions where multiple stable two-cluster states coexist and illustrate this by an example. In addition, we explain how a locally unstable one-cluster state may form an attractor together will its homoclinic connections. This leads to the phenomenon of intermittent, asymptotic synchronization with abating beats away from the perfect synchrony.
Lücken Leonhard
Yanchuk Serhiy
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