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Large-Scale Collective Properties of Self-Propelled Rods

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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https://hal.archives-ouvertes.fr/hal-00905223
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Submitted on : Monday, November 18, 2013 - 3:19:37 PM
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Francesco Ginelli, Fernando Peruani, Markus Baer, Hugues Chaté. Large-Scale Collective Properties of Self-Propelled Rods. Physical Review Letters, American Physical Society, 2010, 104 (18), pp.184502. ⟨10.1103/PhysRevLett.104.184502⟩. ⟨hal-00905223⟩

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