Active jamming: Self-propelled soft particles at high density
Active jamming: Self-propelled soft particles at high density
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DOI：
10.1103/physreve.84.040301
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发表时间：
2011-10-12
影响因子：
2.4
通讯作者：
Marchetti, M. Cristina
中科院分区：
文献类型：
--
作者：
Henkes, Silke;Fily, Yaouen;Marchetti, M. Cristina
我们数值研究的阶段和动态的密集收集的自推进粒子软排斥相互作用在两个维度。该模型的动机是最近在迁移的上皮细胞和内皮细胞的汇合单层的体外实验。相图显示在低填充率phi和高自推进速度v（0）时液相具有巨大的数波动，而在高填充率phi和低自推进速度v（0）时为堵塞相。堵塞相位的动态由堵塞填料的低频模式控制。
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 phi and high self-propulsion speed v(0) and a jammed phase at high phi and low v(0). The dynamics of the jammed phase is controlled by the low-frequency modes of the jammed packing.