Active jamming: Self-propelled soft particles at high density

Silke Henkes*, Yaouen Fily, M. Cristina Marchetti

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

221 Citations (Scopus)


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 v0 and a jammed phase at high φ and low v0. The dynamics of the jammed phase is controlled by the low-frequency modes of the jammed packing.

Original languageEnglish
Article number040301
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Issue number4
Publication statusPublished - 12 Oct 2011

Bibliographical note

Copyright 2011 Elsevier B.V., All rights reserved.


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