Extended Data Fig. 5: Particle turnover time depends on cluster size and particle speed.
From: Active phase separation by turning towards regions of higher density
The turnover time τ, defined in Fig. 2b, depends on the number of particles N in the cluster, and on particle speed and interactions. The number of particles is averaged over the time used to calculate the turnover time τ as in Fig. 2b. This averaging time varies from 30 to 180 s in different clusters. Error bars are s.d. Blue points correspond to an applied electric field with amplitude 66 V/mm and frequency 30 kHz, producing an average single-particle speed of 12 μm/s within clusters. Red points correspond to a field with the same frequency but amplitude 83 V/mm, giving an average single-particle speed of 22 μm/s within clusters. Particles with higher speeds and stronger interactions turn over more quickly.
