Long-Range Ordering of Vibrated Polar Disks

Citation:

C. A. Weber, T. Hanke, J. Deseigne, S. Léonard, O. Dauchot, E. Frey, and H. Chaté. 2013. “Long-Range Ordering of Vibrated Polar Disks.” Phys. Rev. Lett., 110, Pp. 208001.

Abstract:

Vibrated polar disks have been used experimentally to investigate collective motion of driven particles, where fully ordered asymptotic regimes could not be reached. Here we present a model reproducing quantitatively the single, binary, and collective properties of this granular system. Using system sizes not accessible in the laboratory, we show in silico that true long-range order is possible in the experimental system. Exploring the model?s parameter space, we find a phase diagram qualitatively different from that of dilute or pointlike particle systems.