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We numerically examine the transport of active run-and-tumble particlesdriven with a drift force over random disordered landscapes comprised of fixedobstacles. For increasing run lengths, the net particle transport initiallyincreases before reaching a maximum and decreasing at larger run lengths. Thetransport reduction is associated with the formation of cluster or livingcrystal states that become locally jammed or clogged by the obstacles. We alsofind that the system dynamically jams at lower particle densities when the runlength is increased. Our results indicate that there is an optimal activitylevel for active matter transport through quenched disorder, and could beimportant for understanding biological transport in complex environments or forapplications of active matter particles in random media.

Active Matter Transport and Jamming on Disordered Landscapes