title: Stationary patterns of coherence and incoherence in two-dimensional arrays of non-locally-coupled phase oscillators.
abstract: Recently, it has been shown that large arrays of identical oscillators with nonlocal coupling can have a remarkable type of solutions that display a stationary macroscopic pattern of coexisting regions with coherent and incoherent motions, often called chimera states. Here, we present a detailed numerical study of the appearance of such solutions in two-dimensional arrays of coupled phase oscillators. We discover a variety of stationary patterns, including circular spots, stripe patterns, and patterns of multiple spirals. Here, stationarity means that, for increasing system size, the locally averaged phase distributions tend to the stationary profile given by the corresponding thermodynamic limit equation.
authors.affiliation: Weierstrass Institute, Mohrenstrasse 39, 10117 Berlin, Germany.
authors.forename: O E
authors.initials: OE
authors.lastname: Omel'chenko
authors.forename: M
authors.initials: M
authors.lastname: Wolfrum
authors.forename: S
authors.initials: S
authors.lastname: Yanchuk
authors.forename: Y L
authors.initials: YL
authors.lastname: Maistrenko
authors.forename: O
authors.initials: O
authors.lastname: Sudakov
mesh_terms: D008962:Models, Theoretical