Fig. 9: FCCS resembling spermatozoa.
From: Diverse behaviors in non-uniform chiral and non-chiral swarmalators

a Graphical representation of sperm vortex arrays. b Head orientation vs. position along circular trajectory. c Plot of head orientation vs. angular position when the natural frequency distribution is \(F2\). d Scatter plot of phase (angular position) vs. head orientation color coded by the relative natural frequency; this corresponds to when the natural frequency distribution is \(F4\). The result is similar to what is shown in Fig. 2 of Riedel et al.10. e Snapshot of swarmalators demonstrating this behavior when \(K=0,{J}=1,\,\sigma=1.2\), and the natural frequency distribution is \(F2\). f Trajectories of swarmalators self-organizing into arrays of vortices when the natural frequency distribution is \(F2\). g Trajectories of swarmalators self-organizing into several adjacent vortices when the natural frequency distribution is \(F4\).