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Capillary interfacial tension in active phase separation
Giordano Fausti, Elsen Tjhung, Michael Cates +1
In passive fluid-fluid phase separation, a single interfacial tension sets both the capillary fluctuations of the interface and the rate of Ostwald ripening. We show that these phe…
Fluctuation-induced phase separation in metric and topological models of collective motion
David Martin, Hugues Chaté, Cesare Nardini +3
We study the role of noise on the nature of the transition to collective motion in dry active matter. Starting from field theories that predict a continuous transition at the deter…
Symmetric mixtures of pusher and puller microswimmers behave as noninteracting suspensions
Dóra Bárdfalvy, Shan Anjum, Cesare Nardini +2
Suspensions of rear- and front-actuated microswimmers immersed in a fluid, known respectively as ``pushers'' and ``pullers'', display qualitatively different collective behaviours:…
Swimming suppresses correlations in dilute suspensions of pusher microorganisms
Viktor Škultéty, Cesare Nardini, Joakim Stenhammar +2
Active matter exhibits various forms of non-equilibrium states in the absence of external forcing, including macroscopic steady-state currents. Such states are often too complex to…
Particle-resolved lattice Boltzmann simulations of 3-dimensional active turbulence
Dora Bardfalvy, Henrik Nordanger, Cesare Nardini +2
Collective behaviour in suspensions of microswimmers is often dominated by the impact of long-ranged hydrodynamic interactions. These phenomena include active turbulence, where sus…