Emergence of collective motion in a model of interacting Brownian particles

Abstract

By studying a system of Brownian particles, interacting only through a local social-like force (velocity alignment), we show that self-propulsion is not a necessary feature for the flocking transition to take place as long as underdamped particle dynamics can be guaranteed. Moreover, the system transits from stationary phases close to thermal equilibrium, with no net flux of particles, to far-from-equilibrium ones exhibiting collective motion, long-range order and giant number fluctuations, features typically associated to ordered phases of models where self-propulsion is considered.

5 pages, 2 figures

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Cited by in corpus (13)

• Statistical Mechanics of Active Ornstein Uhlenbeck Particles
• Activity induced synchronization: From Mutual Flocking to Chiral Self-Sorting
• Diffusion of active chiral particles
• Fluctuation-induced phase separation in metric and topological models of collective motion
• Emergence of Nonwhite Noise in Langevin Dynamics with Magnetic Lorentz Force
• Thermodynamic uncertainty relation for underdamped Langevin systems driven by a velocity-dependent force
• Active motion on curved surfaces
• Macroscopic Time-Reversal Symmetry Breaking at Nonequilibrium Phase Transition
• Nonequilibrium steady states in Langevin thermal systems
• Noise induced swarming of active particles
• Aggregation of self-propelled particles with sensitivity to local order
• Dynamical phase transitions in two-dimensional Brownian Matter
• Individual particle persistence antagonizes global ordering in populations of nematically-aligning self-propelled particles