Dynamic clustering and chemotactic collapse of self-phoretic active particles

Abstract

Recent experiments with self-phoretic particles at low concentrations show a pronounced dynamic clustering [I. Theurkauff \emph{et al.}, Phys.\ Rev.\ Lett.\ \textbf{108}, 268303 (2012)]. We model this situation by taking into account the translational and rotational diffusiophoretic motion, which the active particles perform in their self-generated chemical field. Our Brownian dynamics simulations show pronounced dynamic clustering only when these two phoretic contributions give rise to competing attractive and repulsive interactions, respectively. We identify two dynamic clustering states and characterize them by power-law-exponential distributions. In case of mere attraction a chemotactic collaps occurs directly from the gas-like into the collapsed state, which we also predict by mapping our Langevin dynamics on the Keller-Segel model for bacterial chemotaxis.

References in corpus (24)

• Collective motion
• Interaction Ruling Animal Collective Behaviour Depends on Topological rather than Metric Distance: Evidence from a Field Study
• Dynamical clustering and phase separation in suspensions of self-propelled colloidal particles
• Athermal Phase Separation of Self-Propelled Particles with no Alignment
• Scale-free correlations in bird flocks
• Meso-scale turbulence in living fluids
• Statistical Mechanics of Interacting Run-and-Tumble Bacteria
• Dynamic clustering in active colloidal suspensions with chemical signaling
• When are active Brownian particles and run-and-tumble particles equivalent? Consequences for motility-induced phase separation
• Active Jamming: Self-propelled soft particles at high density
• A continuum theory of phase separation kinetics for active Brownian particles
• Hydrodynamics determines collective motion and phase behavior of active colloids
• Collective motion and nonequilibrium cluster formation in colonies of gliding bacteria
• Phase separation and rotor self-assembly in active particle suspensions
• Microscopic theory for the phase separation of self-propelled repulsive disks
• Crystallization in a dense suspension of self-propelled particles
• Reentrant Phase Behavior in Active Colloids with Attraction
• Collective Thermotaxis of Thermally Active Colloids
• Living clusters and crystals from low density suspensions of active colloids
• Locomotion of Electrocatalytic Nanomotors due to Reaction Induced Charge Auto-Electrophoresis
• Orientational order in concentrated suspensions of spherical microswimmers
• Spontaneous aggregation and global polar ordering in squirmer suspensions
• Polarization of active Janus particles
• A kinetic model and scaling properties for non-equilibrium clustering of self-propelled particles

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