Exact Hydrodynamic Description of Active Lattice Gases

Abstract : We introduce a class of lattice gas models of active matter systems whose hydrodynamic description can be derived exactly. We illustrate our approach by considering two systems exhibiting two of the most studied collective behaviours in active matter: the motility-induced phase separation and the transition to collective motion. In both cases, we derive coupled partial differential equation describing the dynamics of the local density and polarization fields and show how they quantitatively predict the emerging properties of the macroscopic lattice gases.
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Contributeur : Thierry Bodineau <>
Soumis le : vendredi 2 mars 2018 - 08:59:04
Dernière modification le : mardi 19 mars 2019 - 01:18:58

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  • HAL Id : hal-01721363, version 1
  • ARXIV : 1801.08952


Mourtaza Kourbane-Houssene, Clément Erignoux, Thierry Bodineau, Julien Tailleur. Exact Hydrodynamic Description of Active Lattice Gases. 2018. 〈hal-01721363〉



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