Chimera States

Spontaneous coexistence of synchronized and chaotic oscillator populations — discovered by Kuramoto & Battogtokh 2002

Coupling α 1.40

Range κ 0.25

N oscillators 64

Kuramoto model with nonlocal coupling: dθᵢ/dt = ω − (1/2κ) Σⱼ∈range sin(θᵢ−θⱼ+α)
Chimera: ~half oscillators lock (synchronized), ~half drift (incoherent)