Following fluctuating signs: Anomalous active superdiffusion of swimmers in anisotropic media.

  title={Following fluctuating signs: Anomalous active superdiffusion of swimmers in anisotropic media.},
  author={John Toner and Hartmut L{\"o}wen and Henricus Herman Wensink},
  journal={Physical review. E},
  volume={93 6},
Active (i.e., self-propelled or swimming) particles moving through an isotropic fluid exhibit conventional diffusive behavior. We report anomalous diffusion of an active particle moving in an anisotropic nematic background. While the translational motion parallel to the nematic director shows ballistic behavior, the long-time transverse motion is superdiffusive, with an anomalous scaling proportional to tlnt of the mean-square displacement with time t. This behavior is predicted by an… 

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