Figure 9. Effect of force modulation.
Evolution of the phase difference among two identical model oscillators, each composed of a sphere driven around a circular trajectory by a tangential driving force. The trajectories each possess a radial stiffness λ. Smaller values of λ yield rapid convergence towards synchrony (δ = 0), in a manner essentially independent of the functional form of the driving force. Parameters used are given by a = 0.75 μm, r0 = 8 μm, d = 20 μm, A0 = 1076 μm2/s and A1 = 0.56.