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DY: Fachverband Dynamik und Statistische Physik
DY 43: Pattern Formation - organized by Azam Gholami (Göttingen)
DY 43.4: Talk
Wednesday, March 24, 2021, 15:00–15:20, DYa
Chimera solitons and soliton turbulence in oscillatory media — •Arkady Pikovsky1, Lev Smirnov2, Maxim Bolotov3, Dmitry Bolotov3, and Grigory Osipov3 — 1University of Potsdam, Germany — 2Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia — 3Department of Control Theory, Nizhny Novgorod State University, Nizhny Novgorod, Russia
Chimera states are coexisting patterns of synchrony and asynchrony in oscillatory media. Here we report on stable solitary chimera states in an infinite medium: a finite region of synchrony coexists with an infinite asynchronous background. When this state becomes unstable, soliton turbulence appears, where solitons merge and reappear randomly. With a further change of parameters, this regime evolves into a spatial-temporal intermittency, where the synchronous state is absorbing. Close to the transition point, where the spatial-temporal intermittency disappears, it is dominated by traveling dark solitons: moving patches of asynchrony on a synchronous background.