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Flocking in One Dimension: Asters and Reversals
Brieuc Benvegnen, Hugues Chaté, Pavel Krapivsky +2
We study the one-dimensional active Ising model in which aligning particles undergo diffusion biased by the signs of their spins. The phase diagram obtained varying the density of…
Passive objects in confined active fluids: a localization transition
Ydan Ben Dor, Yariv Kafri, Mehran Kardar +1
We study how walls confining active fluids interact with asymmetric passive objects placed in their bulk. We show that the objects experience non-conservative long-ranged forces me…
Susceptibility of Polar Flocks to Spatial Anisotropy
Alexandre Solon, Hugues Chaté, John Toner +1
We consider the effect of spatial anisotropy on polar flocks by investigating active -state clock models in two dimensions. In contrast to what happens in equilibrium, we find t…
Time-(ir)reversibility in active matter: from micro to macro
Jérémy O'Byrne, Yariv Kafri, Julien Tailleur +1
Active matter encompasses systems whose individual consituents dissipate energy to exert propelling forces on their environment. This rapidly developing field harbors a dynamical p…
Kinetic Monte-Carlo Algorithms for Active-Matter systems
Juliane U. Klamser, Olivier Dauchot, Julien Tailleur
We study kinetic Monte-Carlo (KMC) descriptions of active particles. By relying on large discrete time steps, KMC algorithms accelerate the relaxational dynamics of active systems…
Statistical Mechanics of Active Ornstein Uhlenbeck Particles
David Martin, Jérémy O'Byrne, Michael E. Cates +4
We review and extend recent developments on the statistical properties of Active Ornstein Uhlenbeck particles (AOUPs). In this simplest of models, the Gaussian white noise of overd…