Active jamming: self-propelled soft particles at high density - PubMed (original) (raw)
. 2011 Oct;84(4 Pt 1):040301.
doi: 10.1103/PhysRevE.84.040301. Epub 2011 Oct 12.
Affiliations
- PMID: 22181078
- DOI: 10.1103/PhysRevE.84.040301
Active jamming: self-propelled soft particles at high density
Silke Henkes et al. Phys Rev E Stat Nonlin Soft Matter Phys. 2011 Oct.
Abstract
We study numerically the phases and dynamics of a dense collection of self-propelled particles with soft repulsive interactions in two dimensions. The model is motivated by recent in vitro experiments on confluent monolayers of migratory epithelial and endothelial cells. The phase diagram exhibits a liquid phase with giant number fluctuations at low packing fraction φ and high self-propulsion speed v(0) and a jammed phase at high φ and low v(0). The dynamics of the jammed phase is controlled by the low-frequency modes of the jammed packing.