Stalled Particles Drive Phase Separation in Active Matter
Analysis
Key Takeaways
- •Introduces a model of active Brownian particles with a fraction of stalled particles.
- •Stalled particles mediate attractive interactions via an effective potential.
- •A small fraction of stalled particles can drive phase separation at lower densities than MIPS.
- •Provides a phase diagram in terms of the fraction of stalled particles and the Peclet number.
“A small fraction of stalled particles in the system allows for the formation of dynamical clusters at significantly lower densities than predicted by standard MIPS.”