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Mathematical Modelling and Data Analysis

Department 8.4

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Title: Large-scale collective properties of self-propelled rods
Author(s): F. Ginelli, F. Peruani, M. Bär and H. Chaté
Journal: Phys. Rev. Lett.
Year: 2010
Volume: 104
Issue: 18
Pages: 184502
DOI: 10.1103/PhysRevLett.104.184502
ISSN: 1079-7114
Web URL: http://www.ncbi.nlm.nih.gov/pubmed/20482178
Tags: 8.41, SPP, 8.43
Abstract: We study, in two space dimensions, the collective properties of constant-speed polar point particles interacting locally by nematic alignment in the presence of noise. This minimal approach to self-propelled rods allows one to deal with large numbers of particles, which exhibit a rich phenomenology distinctively different from all other known models for self-propelled particles. Extensive simulations reveal long-range nematic order, phase separation, and space-time chaos mediated by large-scale segregated structures.

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