Skip to Main content Skip to Navigation
Journal articles

Fore-aft asymmetric flocking

Abstract : We show that fore-aft asymmetry, a generic feature of living organisms and some active matter systems, can have a strong influence on the collective properties of even the simplest flocking models. Specifically, an arbitrarily weak asymmetry favoring front neighbors changes qualitatively the phase diagram of the Vicsek model. A region where many sharp traveling band solutions coexist is present at low noise strength, below the Toner-Tu liquid, at odds with the phase-separation scenario well describing the usual isotropic model. Inside this region, a “banded-liquid” phase with algebraic density distribution coexists with band solutions. Linear stability analysis at the hydrodynamic level suggests that these results are generic and not specific to the Vicsek model.
Document type :
Journal articles
Complete list of metadata

Cited literature [19 references]  Display  Hide  Download
Contributor : Dominique GIRARD Connect in order to contact the contributor
Submitted on : Thursday, September 21, 2017 - 5:32:17 PM
Last modification on : Friday, January 7, 2022 - 3:52:16 AM


Files produced by the author(s)



Chen Qiu-Shi, Aurelio Patelli, Hugues Chaté, Yu-Qiang Ma, Xia-Qing Shi. Fore-aft asymmetric flocking. Physical Review E , American Physical Society (APS), 2017, 96, pp.20601. ⟨10.1103/PhysRevE.96.020601⟩. ⟨cea-01591666⟩



Record views


Files downloads