Laning and Clustering Transitions in Driven Binary Active Matter Systems

Abstract

It is well known that a binary system of non-active disks that experience driving in opposite directions exhibits jammed, phase separated, disordered, and laning states. In active matter systems, such as a crowd of pedestrians, driving in opposite directions is common and relevant, especially in conditions which are characterized by high pedestrian density and emergency. In such cases, the transition from laning to disordered states may be associated with the onset of a panic state. We simulate a laning system containing active disks that obey run-and-tumble dynamics, and we measure the drift mobility and structure as a function of run length, disk density, and drift force. The activity of each disk can be quantified based on the correlation timescale of the velocity vector. We find that in some cases, increasing the activity can increase the system mobility by breaking up jammed configurations; however, an activity level that is too high can reduce the mobility by increasing the probability of disk-disk collisions. In the laning state, the increase of activity induces a sharp transition to a disordered strongly fluctuating state with reduced mobility. We identify a novel drive-induced clustered laning state that remains stable even at densities below the activity-induced clustering transition of the undriven system.

arXiv comment11 pages, 18 postscript figures

References in corpus (26)

• Active Particles in Complex and Crowded Environments
• Motility-Induced Phase Separation
• Dynamical clustering and phase separation in suspensions of self-propelled colloidal particles
• Athermal Phase Separation of Self-Propelled Particles with no Alignment
• When are active Brownian particles and run-and-tumble particles equivalent? Consequences for motility-induced phase separation
• Freezing by Heating in a Driven Mesoscopic System
• Diffusion, subdiffusion, and trapping of active particles in heterogeneous media
• Dynamics of lane formation in driven binary complex plasmas
• Optimal noise maximizes collective motion in heterogeneous media
• Active Matter Transport and Jamming on Disordered Landscapes
• Driven Diffusive Systems: An Introduction and Recent Developments
• Reentrance effect in the lane formation of driven colloids
• Dynamic Phases of Active Matter Systems with Quenched Disorder
• Optimized Diffusion of Run-and-Tumble Particles in Crowded Environments
• Universal Long Ranged Correlations in Driven Binary Mixtures
• Active Microrheology in Active Matter Systems: Mobility, Intermittency and Avalanches
• Oscillatory driven colloidal binary mixtures: axial segregation versus laning
• On the microscopic origin and macroscopic implications of lane formation in mixtures of oppositely-driven particles
• Avalanche Dynamics for Active Matter in Heterogeneous Media
• Cooperative Behavior and Pattern Formation in Mixtures of Driven and Nondriven Colloidal Assemblies
• Lane formation in a driven attractive fluid
• Instabilities and turbulence-like dynamics in an oppositely driven binary particle mixture
• Lane formation dynamics of oppositely self-driven binary particles: Effects of density and finite system size
• Lane formation in a lattice model for oppositely driven binary particles
• Symmetry-breaking in clogging for oppositely driven particles
• Stripes, Clusters, and Nonequilibrium Ordering for Bidisperse Colloids with Repulsive Interactions

Cited by in corpus (15)

• Analytical approach to chiral active systems: suppressed phase separation of interacting Brownian circle swimmers
• Reversibility, Pattern Formation and Edge Transport in Active Chiral and Passive Disk Mixtures
• Collective self-optimization of communicating active particles
• Traveling band formation in feedback-driven colloids
• Flocking with a $q$-fold discrete symmetry: band-to-lane transition in the active Potts model
• Aggregate morphology of active Brownian particles on porous, circular walls
• Dynamics and Nonmonotonic Drag for Individually Driven Skyrmions
• Disordering, Clustering, and Laning Transitions in Particle Systems with Dispersion in the Magnus Term
• Pattern formation and phase transition in the collective dynamics of a binary mixture of polar self-propelled particles
• Emergent Synchronization and Flocking in Purely Repulsive Self-Navigating Particles
• Perpendicular and Parallel Phase Separation in Two Species Driven Diffusive Lattice Gases
• Membranes for spontaneous separation of pedestrian counter flows
• Field driven cluster formation in two-dimensional colloidal binary mixtures
• Modelling vehicle and pedestrian collective dynamics: Challenges and advances
• Striped Patterns in Radially Driven Suspensions with Open Boundaries