22.11., Galina Strelkova (Saratov State University)
Transition from Coherence to Incoherence in a Network of Nonlocally Coupled Chaotic Maps.

We explore the transition from coherence to incoherence in an ensemble of nonlocally coupled logistic maps. 
It is  shown  that two types of chimera states, namely, amplitude and phase, can be found in this network. 
We  reveal a bifurcation mechanism by analyzing the evolution of space-time  profiles and the coupling function 
with varying coupling coefficient and formulate the  conditions for realizing the chimera states in the  
ensemble. We also analyze the evolution of cross-correlations of oscillations in the network elements with 
the coupling strength variation  and reveal the features of  cross-correlations for the phase and amplitude 
chimera states. It is also shown that the effect of time intermittency between the amplitude and phase chimeras 
can be realized in the considered ensemble.