Swarming and swirling in self-propelled polar granular rods

Abstract

Using experiments with anisotropic vibrated rods and quasi-2D numerical simulations, we show that shape plays an important role in the collective dynamics of self-propelled (SP) particles. We demonstrate that SP rods exhibit local ordering, aggregation at the side walls, and clustering absent in round SP particles. Furthermore, we find that at sufficiently strong excitation SP rods engage in a persistent swirling motion in which the velocity is strongly correlated with particle orientation.

4 pages

References in corpus (6)

• Novel type of phase transition in a system of self-driven particles
• Non-equilibrium clustering of self-propelled rods
• Minimal model for active nematics: quasi-long-range order and giant fluctuations
• Pattern formation of microtubules and motors: inelastic interaction of polar rods
• Active nematics are intrinsically phase-separated
• Rheology of Active Filament Solutions

Cited by in corpus (74)

• Collective motion and nonequilibrium cluster formation in colonies of gliding bacteria
• Tuned, driven, and active soft matter
• Emergent vortices in populations of colloidal rollers
• Dynamics of a Brownian circle swimmer
• Inertial effects of self-propelled particles: from active Brownian to active Langevin motion
• Enhanced diffusion and ordering of self-propelled rods
• Swarm behavior of self-propelled rods and swimming flagella
• Traffic jams, gliders, and bands in the quest for collective motion
• Emergence and Persistence of Collective Cell Migration on Small Circular Micropatterns
• Velocity distribution of a homogeneously driven two-dimensional granular gas
• Symmetry properties of the large-deviation function of the velocity of a self-propelled polar particle
• Cluster dynamics and cluster size distributions in systems of self-propelled particles
• Active Ornstein-Uhlenbeck model for self-propelled particles with inertia
• Schools of skyrmions with electrically tunable elastic interactions
• Time-dependent inertia of self-propelled particles: the Langevin rocket
• Brownian motion of a circle swimmer in a harmonic trap
• Anomalous Diffusion of Self-Propelled Particles in Directed Random Environments
• Oscillatory chiral flows in confined active fluids with obstacles
• Patterns, transitions and the role of leaders in the collective dynamics of a simple robotic flock
• Disordered boundaries destroy bulk phase separation in scalar active matter
• Disrupting the wall accumulation of human sperm cells by artificial corrugation
• Flow and rheology of frictional elongated grains
• Anisotropic Isometric Fluctuation Relations in experiment and theory on a self-propelled rod
• Active Refrigerators Powered by Inertia
• From scalar to polar active matter: Connecting simulations with mean-field theory
• Role of particle conservation in self-propelled particle systems
• Inertial active matter with Coulomb friction
• Active particles in non-inertial frames: how to self-propel on a carousel
• Lack of an equation of state for the nonequilibrium chemical potential of gases of active particles in contact
• Whirligig Beetles as Corralled Active Brownian Particles
• Bouncing trimer: a random self-propelled particle, chaos and periodical motions
• Exact moments and re-entrant transitions in the inertial dynamics of active Brownian particles
• Motile topological defects hinder dynamical arrest in dense liquids of active ellipsoids
• Flow around topological defects in active nematic films
• Capillary surfers: wave-driven particles at a vibrating fluid interface
• Roadmap for Animate Matter
• Nucleation-induced transition to collective motion in active systems
• Work Fluctuations in the Active Ornstein- Uhlenbeck Particle model
• Orbital Magnetism of Active Viscoelastic Suspension
• Force renormalization for probes immersed in an active bath
• Confinement-driven state transition and bistability in schooling fish
• Collective Vortical Motion and Vorticity Reversals of Self-Propelled Particles on Circularly Patterned Substrates
• Polymer translocation through nanopore assisted by an environment of active rods
• Bidirectional Wave-Propelled Capillary Spinners
• Escape dynamics of a self-propelled nanorod from circular confinements with narrow openings
• Effect of Confinement and Topology: 2-TIPS vs MIPS
• Dynamical crossovers and correlations in a harmonic chain of active particles
• Dynamics of wet granular hexagons
• Dissolution-driven propulsion of floating solids
• Homogeneous and heterogeneous populations of active rods in two-dimensional channels
• Dispersionless Flat Mode and Vibrational Anomaly in Active Brownian Vibrators Induced by String-like Dynamical Defects
• Focusing by blocking: repeatedly generating central density peaks in self-propelled particle systems by exploiting diffusive processes
• A mean-field model for nematic alignment of self-propelled rods
• Phases and correlations in active nematic granular systems
• Collective motion of granular matter subjected to swirling excitation
• Adiabatic elimination of inertia of the stochastic microswimmer driven by $\alpha -$stable noise
• The coherent motions of thermal active Brownian particles
• Self-Aligning Active Agents with Inertia and Active Torque
• Lateral contact yields longitudinal cohesion in active undulatory systems
• Controlled Locomotion of a Minimal Soft Structure by Stick-Slip Nonlinearity
• Experimental Modeling of Chiral Active Robots and a Minimal Model of Non-Gaussian Displacements
• Jerky chiral active particles
• Dynamical Boundary Following and Corner Trapping of Undulating Worms
• Shape anisotropy governs organization of active rods: Swarming, turbulence, flocking, and jamming
• Bidirectional Zigzag Growth from Clusters of Active Colloidal Shakers
• Dynamic Phases and Combing Effects for Elongated Particles Moving Over Quenched Disorder
• Inertia-chirality interplay in active Brownian motion: exact dynamics and phase maps
• A granular Büttiker-Landauer motor
• Noncentral forces mediated between inclusions in a bath of active Brownian rods
• Self-similar inhomogeneous stationary states under constrained dynamics
• Hydrodynamic bend instability of motile particles on a substrate
• Self-organized Collective Motion with a Simulated Real Robot Swarm
• Active adaptolates: motility-induced percolating structures with an adaptive packing geometry
• Universal framework for the long-time position distribution of free active particles