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arXiv · 1004.1499

Collective Motion of Vibrated Polar Disks

Julien Deseigne·Olivier Dauchot·Hugues Chatè
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Abstract

We experimentally study a monolayer of vibrated disks with a built-in polar asymmetry which enables them to move quasi-balistically on a large persistence length. Alignment occurs during collisions as a result of self-propulsion and hard core repulsion. Varying the amplitude of the vibration, we observe the onset of large-scale collective motion and the existence of giant number fluctuations with a scaling exponent in agreement with the predicted theoretical value.

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Julien Deseigne, Olivier Dauchot, Hugues Chatè. 2010-04-09. Collective Motion of Vibrated Polar Disks. https://doi.org/10.1103/physrevlett.105.098001

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