Collision-induced torque mediates transition of chiral dynamic patterns formed by active particles

Abstract

It is still challenging to control dynamic self-organization patterns of self-propelled particles. Although varieties of patterns associated with chirality have been observed, essential control factors determining patterns remain unclear. Here, we explore numerically how torque upon particle collision affects dynamic self-organization. Based on the particle-based model with both collision-induced torque and torque in self-propulsion, we find that introducing collision-induced torque turns homogeneous bi-polar orientation templated by bi-directional alignment into rotating mono-polar flocks.

arXiv comment24 pages, 7 figures

References in corpus (13)

• Collective motion
• Two-step melting in two dimensions: First-order liquid-hexatic transition
• Enhanced diffusion and ordering of self-propelled rods
• The Rotating Vicsek Model: Pattern Formation and Enhanced Flocking in Chiral Active Matter
• Active phase separation by turning toward regions of higher density
• Activity induced synchronization: From Mutual Flocking to Chiral Self-Sorting
• Active Curved Polymers form Vortex Patterns on Membranes
• Mixing and demixing of binary mixtures of polar chiral active particles
• Traveling Bands, Clouds, and Vortices of Chiral Active Matter
• Large-scale chirality in an active layer of microtubules and kinesin motor proteins
• Gliding filament system giving both orientational order and clusters in collective motion
• Hysteresis, reentrance, and glassy dynamics in systems of self-propelled rods
• Relevance of intracellular polarity to accuracy of eukaryotic chemotaxis