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Article Dans Une Revue Physical Review Letters Année : 2021

Susceptibility of Orientationally Ordered Active Matter to Chirality Disorder

Résumé

We investigate the susceptibility of long-range ordered phases of two-dimensional dry aligning active matter to population disorder, taken in the form of a distribution of intrinsic individual chiralities. Using a combination of particle-level models and hydrodynamic theories derived from them, we show that while in finite systems all ordered phases resist a finite amount of such chirality disorder, the homogeneous ones (polar flocks and active nematics) are unstable to any amount of disorder in the infinite-size limit. On the other hand, we find that the inhomogeneous solutions of the coexistence phase (bands) may resist a finite amount of chirality disorder even asymptotically.

Dates et versions

cea-04344945 , version 1 (14-12-2023)

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Bruno Ventejou, Hugues Chaté, Raul Montagne, Xia-Qing Shi. Susceptibility of Orientationally Ordered Active Matter to Chirality Disorder. Physical Review Letters, 2021, 127 (23), pp.238001. ⟨10.1103/PhysRevLett.127.238001⟩. ⟨cea-04344945⟩
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