Condensation and Synchronization in Aligning Chiral Active Matter
arXiv:2407.00458 · doi:10.1103/PhysRevLett.133.258302
Abstract
We show that spontaneous density segregation in dense systems of aligning circle swimmers is a condensation phenomenon at odds with the phase separation scenarios usually observed in two-dimensional active matter. The condensates, which take the form of vortices or rotating polar packets, can absorb a finite fraction of the particles in the system, and keep a finite or slowly growing size as their mass increases. Our results are obtained both at particle and continuous levels. We consider both ferromagnetic and nematic alignment, and both identical and disordered chiralities. Condensation implies synchronization, even though our systems are in 2D and bear strictly local interactions. We propose a phenomenological theory based on observed mechanisms that accounts qualitatively for our results.
7 pages, 5 figures
References in corpus (21)
- Motility-Induced Phase Separation
- Nonequilibrium Statistical Mechanics of the Zero-Range Process and Related Models
- Phase separation and rotor self-assembly in active particle suspensions
- Clusters, asters and collective oscillations in chemotactic colloids
- Odd dynamics of living chiral crystals
- The Rotating Vicsek Model: Pattern Formation and Enhanced Flocking in Chiral Active Matter
- Dynamic clustering and chemotactic collapse of self-phoretic active particles
- Activity induced synchronization: From Mutual Flocking to Chiral Self-Sorting
- Entrainment transition in populations of random frequency oscillators
- Active Curved Polymers form Vortex Patterns on Membranes
- Clustering and flocking of repulsive chiral active particles with non-reciprocal couplings
- Pattern Formation in Chemically Interacting Active Rotors with Self-Propulsion
- Dynamical Clustering Interrupts Motility Induced Phase Separation in Chiral Active Brownian Particles
- Simultaneous Phase Separation and Pattern Formation in Chiral Active Mixtures
- Dynamical Crystallites of Active Chiral Particles
- Spontaneously rotating clusters of active droplets
- Traveling Bands, Clouds, and Vortices of Chiral Active Matter
- Bose-Einstein Condensation in Scalar Active Matter with Diffusivity Edge
- Magnetic microswimmers exhibit Bose-Einstein-like condensation
- Bose-Einstein-like Condensation due to Diffusivity Edge under Periodic Confinement
- Vectorial active matter on the lattice: polar condensates and nematic filaments