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Effect of reorientation statistics on torque response of self-propelled particles
Benjamin Hancock1, Aparna Baskaran1
1Martin Fisher School of Physics, Brandeis University, Waltham, Massachusetts 02453, USA.
Abstract:
We consider the dynamics of self-propelled particles subject to external torques. Two models for the reorientation of self-propulsion are considered: run-and-tumble particles and active Brownian particles. Using the standard tools of nonequilibrium statistical mechanics we show that the run and tumble particles have a more robust response to torques. This macroscopic signature of the underlying reorientation statistics can be used to differentiate between the two types of self-propelled particles.
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