TY  - JOUR
A1  - Bataille-Gonzalez, Martin
A1  - Clerc, Marcel G.
A1  - Omel'chenko, Oleh
T1  - Moving spiral wave chimeras
T2  - Physical review : E, Statistical, nonlinear and soft matter physics
N2  - We consider a two-dimensional array of heterogeneous nonlocally coupled phase oscillators on a flat torus and study the bound states of two counter-rotating spiral chimeras, shortly two-core spiral chimeras, observed in this system. In contrast to other known spiral chimeras with motionless incoherent cores, the two-core spiral chimeras typically show a drift motion. Due to this drift, their incoherent cores become spatially modulated and develop specific fingerprint patterns of varying synchrony levels. In the continuum limit of infinitely many oscillators, the two-core spiral chimeras can be studied using the Ott-Antonsen equation. Numerical analysis of this equation allows us to reveal the stability region of different spiral chimeras, which we group into three main classes-symmetric, asymmetric, and meandering spiral chimeras.
Y1  - 2021
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/59888
SN  - 2470-0045
SN  - 2470-0053
VL  - 104
IS  - 2
PB  - American Physical Society
CY  - College Park
ER  -