Lane formation dynamics of oppositely self-driven binary particles: Effects of density and finite system size

Abstract

We examined the lane formation dynamics of oppositely self-driven binary particles by molecular dynamics simulations of a two-dimensional system. Our study comprehensively revealed the effects of the density and system size on the lane formation. The phase diagram distinguishing the no-lane and lane states was systematically determined for various combinations of the anisotropic friction coefficient and the desired velocity. A peculiar clustered structure was observed when the lane was destroyed by greatly increasing the desired velocity. A strong system size effect was demonstrated by the relationship between the temporal and spatial scales of the lane structure. This system size effect can be attributed to an analogy with the driven lattice gas. The transport efficiency was characterized from the scaling relation in terms of the degree of lane formation and the interface thickness between different lanes.

8 pages, 8 figures, to appear in Journal of the Physical Society of Japan

References in corpus (9)

• Statistical physics of social dynamics
• Universal power law governing pedestrian interactions
• Tuned, driven, and active soft matter
• Modeling Crowd Turbulence by Many-Particle Simulations
• Dynamics of lane formation in driven binary complex plasmas
• Influence of hydrodynamic interactions on lane formation in oppositely charged driven colloids
• Lane formation in a system of dipolar microswimmers
• Lane formation in a driven attractive fluid
• Novel structure formation of a phase separating colloidal fluid in a ratchet potential