Diffusion of torqued active particles

ORAL

Abstract

Motivated by swimming microorganisms whose trajectories are affected by the presence of an external torque, we calculate the diffusivity of an active particle subject to an external torque and in a fluctuating environment. The analytical results are compared with Brownian dynamics simulations showing excellent agreement between theory and numerical experiments.

*This work was funded in part by the Consejo Nacional de Ciencia y Tecnologia of Mexico (Conacyt postdoctoral fellowship to M. S.) and the US National Science Foundation (Grant CBET-0746285 to E.L.).

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Authors

  • Mario Sandoval

    • University of California San Diego

  • Eric Lauga

    • Department of Mechanical and Aerospace Engineering, University of California, San Diego
    • Department of Mechanical and Aerospace Engineering, University of California San Diego
    • Department of Mechanical and Aerospace Engineering, UC San Diego
    • University of California San Diego
    • University of California at San Diego
    • University of California, San Diego