Coarse-graining dense, deformable active particles
Physical Review Research American Physical Society (APS) 7:4 (2025) 43070
Abstract:
We coarse-grain a model of closely packed ellipses that can vary their aspect ratio to derive continuum equations聽for materials comprising confluent deformable particles such as epithelial cell layers. We show that contractile nearest-neighbor interactions between ellipses can lead to their elongation and nematic ordering. Adding flows resulting from active hydrodynamic stresses produced by the particles also affects the aspect ratio and can result in active turbulence. Our results, which agree well with multiphase field simulations of deformable isotropic cells, provide a bridge between models that explicitly resolve cells and continuum theories of active matter.A simple mean field model of feature learning
(2025)
Anomalous Diffusion in Driven Electrolytes due to Hydrodynamic Fluctuations
(2025)
Long-time divergences in the nonlinear response of gapped one-dimensional many-particle systems
SciPost Physics SciPost 19:4 (2025) 086
Abstract:
SciPost Journals Publication Detail SciPost Phys. 19, 086 (2025) Long-time divergences in the nonlinear response of gapped one-dimensional many-particle systemsChaotic many-body quantum dynamics, spectral correlations, and energy diffusion
ArXiv 2510.02198 (2025)