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Synchronisation and scaling properties of chaotic networks with multiple delays

AuthorsD'Huys, Otti; Zeeb, Steffen; Jüngling, Thomas; Heiligenthal, Sven; Yanchuk, Serhiy; Kinzel, Wolfgang
Issue DateJul-2013
PublisherEuropean Physical Society
CitationEurophysics Letters 103(1): 10013 (2013)
AbstractWe study chaotic systems with multiple time delays that range over several orders of magnitude. We show that the spectrum of Lyapunov exponents (LEs) in such systems possesses a hierarchical structure, with different parts scaling with the different delays. This leads to different types of chaos, depending on the scaling of the maximal LE. Our results are relevant, in particular, for the synchronisation properties of hierarchical networks (networks of networks) where the nodes of subnetworks are coupled with shorter delays and couplings between different subnetworks are realised with longer delay times. Units within a subnetwork can synchronise if the maximal exponent scales with the shorter delay, long-range synchronisation between different subnetworks is only possible if the maximal exponent scales with the longer delay. The results are illustrated analytically for Bernoulli maps and numerically for tent maps and semiconductor lasers. © Copyright EPLA, 2013.
Publisher version (URL)http://dx.doi.org/10.1209/0295-5075/103/10013
Identifiersissn: 0295-5075
e-issn: 1286-4854
Appears in Collections:(IFISC) Artículos
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