Strings of droplets propelled by coherent waves.

  title={Strings of droplets propelled by coherent waves.},
  author={Boris Filoux and Maxime Hubert and Nicolas Vandewalle},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={92 4},
Bouncing walking droplets possess fascinating properties due to their peculiar wave-particle interaction leading to unexpected quantumlike behaviors. We propose a study consisting in droplets walking along annular cavities. We show that, in this geometry, they spontaneously form a string of synchronized bouncing droplets that share a common coherent wave propelling the group at a speed faster than single walkers. The formation of this coherent wave and the collective droplet behaviors are… 

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