Critical mingling and universal correlations in model binary active liquids

2016/12/08 by Nicolas, Bain, Denis, Bartolo · 2 citations
#FOS: Physical sciences #Soft Condensed Matter (cond-mat.soft)

paper · doi:10.48550/arxiv.1612.02565

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.

Cited by

• Hysteresis, Laning, and Negative Drag in Binary Systems with Opposite and Perpendicular Driving
• Laning Transitions in Pattern Forming Driven Binary Systems with Competing Interactions

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