Granular Segregation as a Critical Phenomenon

Phys. Rev. Lett. 89, 244301 – Published 25 November 2002
Pedro M. Reis and Tom Mullin

Abstract

We present the results of an experimental study of patterned segregation in a horizontally shaken shallow layer of a binary mixture of dry particles. An order parameter for the segregated domains is defined and the effect of the variation of the combined filling fraction, C, of the mixture on the observed pattern formation is systematically studied. We find that there is a critical event associated with the onset of segregation, at Cc=0.647±0.049, which has the characteristics of a continuous phase transition, including critical slowing down.

DOI: http://dx.doi.org/10.1103/PhysRevLett.89.244301

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  • Received 16 July 2002
  • Published 25 November 2002

© 2002 The American Physical Society

Authors & Affiliations

Pedro M. Reis and Tom Mullin

  • Manchester Center for Nonlinear Dynamics, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom

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