Active Phase Separation Pathways: Necking, Rupture, and Cavitation
Research Paper#Active Matter, Phase Separation, Non-equilibrium Physics🔬 Research|Analyzed: Jan 3, 2026 08:42•
Published: Dec 31, 2025 11:00
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•ArXivAnalysis
This paper investigates the dynamic pathways of a geometric phase transition in an active matter system. It focuses on the transition between different cluster morphologies (slab and droplet) in a 2D active lattice gas undergoing motility-induced phase separation. The study uses forward flux sampling to generate transition trajectories and reveals that the transition pathways are dependent on the Peclet number, highlighting the role of non-equilibrium fluctuations. The findings are relevant for understanding active matter systems more broadly.
Key Takeaways
- •Investigates the dynamic pathways of a geometric phase transition in active matter.
- •Focuses on the transition between slab and droplet morphologies.
- •Transition pathways depend on the Peclet number.
- •Reveals the importance of non-equilibrium fluctuations.
- •Findings are relevant for understanding active matter systems.
Reference / Citation
View Original"The droplet-to-slab transition always follows a similar mechanism to its equilibrium counterpart, but the reverse (slab-to-droplet) transition depends on rare non-equilibrium fluctuations."