Flowrate behavior and clustering of self-driven robots in a channel

Tian Bo^{1, 2}, Sun Wang-Ping¹, Li Ming^{1, †}, Jiang Rui³, Hu Mao-Bin^{1, ‡}

(color online) Flow rate J plotted as a function of the density ρ. The scattered points are the experiment results and the red solid line is the fitting curve.