Extended Data Fig. 1: Trajectories of spiral cores of propagating spiral waves at steady state.
From: Emergence of large-scale mechanical spiral waves in bacterial living matter
(a) Representative spiral core trajectories acquired experimentally in artificial bacterial films of piliated P. aeruginosa (PA14 flgK::Tn5). Each trajectory lasted for ~1 hour. The range of spiral core motion is a few tens of µm and two order of magnitude smaller than the wavelength (~1 mm). The trajectories appeared random and showed no periodic meandering motion. The trajectories of different cores are labelled with different colour. The initial position of each core is set to x = 0, y = 0 for better comparison. (b) Representative spiral core trajectories in numerical simulations of the nonreciprocal coupled oscillator model with a full nonreciprocity (ε = 1) associated with main text Fig. 3f. The trajectories are plotted in the same manner as in panel A.
