Transition from spatial coherence to incoherence in coupled chaotic systems

Iryna Omelchenko, Bruno Riemenschneider, Philipp Hövel, Yuri Maistrenko, Eckehard Schöll
2012 Physical Review E  
We investigate the spatio-temporal dynamics of coupled chaotic systems with nonlocal interactions, where each element is coupled to its nearest neighbors within a finite range. Depending upon the coupling strength and coupling radius, we find characteristic spatial patterns such as wave-like profiles and study the transition from coherence to incoherence leading to spatial chaos. We analyze the origin of this transition based on numerical simulations and support the results by theoretical
more » ... tions identifying a critical coupling strength and a scaling relation of the coherent profiles. To demonstrate the universality of our findings we consider time-discrete as well as time-continuous chaotic models realized as logistic map and R\"ossler or Lorenz system, respectively. Thereby we establish the coherence-incoherence transition in networks of coupled identical oscillators.
doi:10.1103/physreve.85.026212 pmid:22463304 fatcat:mkkdp7fhr5fl3pwgpmpi7fx7nm