title: Emergence of coherence in complex networks of heterogeneous dynamical systems.
abstract: We present a general theory for the onset of coherence in collections of heterogeneous maps interacting via a complex connection network. Our method allows the dynamics of the individual uncoupled systems to be either chaotic or periodic, and applies generally to networks for which the number of connections per node is large. We find that the critical coupling strength at which a transition to synchrony takes place depends separately on the dynamics of the individual uncoupled systems and on the largest eigenvalue of the adjacency matrix of the coupling network. Our theory directly generalizes the Kuramoto model of equal strength all-to-all coupled phase oscillators to the case of oscillators with more realistic dynamics coupled via a large heterogeneous network.
authors.affiliation: Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA. juanga@math.umd.edu
authors.forename: Juan G
authors.initials: JG
authors.lastname: Restrepo
authors.forename: Edward
authors.initials: E
authors.lastname: Ott
authors.forename: Brian R
authors.initials: BR
authors.lastname: Hunt
mesh_terms: D003195:Computer Communication Networks; D007255:Information Services; D008962:Models, Theoretical; D012944:Social Support