Lagrangian manifestation of anomalies in active turbulence

@article{Singh2022LagrangianMO,
  title={Lagrangian manifestation of anomalies in active turbulence},
  author={Rahul K. Singh and Siddhartha Mukherjee and Samriddhi Sankar Ray},
  journal={Physical Review Fluids},
  year={2022}
}
We show that Lagrangian measurements in active turbulence bear imprints of turbulent and anomalous streaky hydrodynamics leading to a self-selection of persistent trajectories— L´evy walks — over diffusive ones. This emergent dynamical heterogeneity results in a super-diffusive first passage distribution which could lead to biologically advantageous motility. We then go beyond single-particle statistics to show that for the pair-dispersion problem as well, active flows are at odds with inertial… 

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