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Turn towards the crowd

A type of polar self-propelled particle generates a torque that makes it naturally drawn to higher-density areas. The collective behaviour this induces in assemblies of particles constitutes a new form of phase separation in active fluids.

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Fig. 1: Types of collective behaviour in polar active fluids.


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Correspondence to Olivier Dauchot.

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Dauchot, O. Turn towards the crowd. Nat. Phys. 17, 883–884 (2021).

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