Rectification of Swimming Bacteria and Self-Driven Particle Systems by Arrays of Asymmetric Barriers
M. B. Wan, C. J. Olson Reichhardt, Z. Nussinov, and C. Reichhardt
We show that the recent experimental observation of the rectification of swimming bacteria in a system with an array of asymmetric barriers occurs due to the ballistic component of the bacteria trajectories introduced by the bacterial motor. Each bacterium selects a random direction for motion and t ... [Phys. Rev. Lett. 101, 018102 (2008)] published Thu Jul 3, 2008.