Critical mingling and universal correlations in model binary active liquids

Nicolas Bain () and Denis Bartolo ()
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Nicolas Bain: Univ Lyon, Ens de Lyon, Univ Claude Bernard, CNRS, Laboratoire de Physique
Denis Bartolo: Univ Lyon, Ens de Lyon, Univ Claude Bernard, CNRS, Laboratoire de Physique

Nature Communications, 2017, vol. 8, issue 1, 1-6

Abstract: Abstract Ensembles of driven or motile bodies moving along opposite directions are generically reported to self-organize into strongly anisotropic lanes. Here, building on a minimal model of self-propelled bodies targeting opposite directions, we first evidence a critical phase transition between a mingled state and a phase-separated lane state specific to active particles. We then demonstrate that the mingled state displays algebraic structural correlations also found in driven binary mixtures. Finally, constructing a hydrodynamic theory, we single out the physical mechanisms responsible for these universal long-range correlations typical of ensembles of oppositely moving bodies.

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15969

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DOI: 10.1038/ncomms15969

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