Volume 116, Number 2, October 2016
|Number of page(s)||6|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||01 December 2016|
Glass transitions in the cellular Potts model
SUPA, School of Physics and Astronomy, University of Edinburgh - Edinburgh EH9 3FD, UK
Received: 11 August 2016
Accepted: 2 November 2016
We study the dynamical transition between a fluid-like and a solid-like phase in a confluent cell monolayer, by using the cellular Potts model and computer simulations. We map out the phase diagram as a function of interfacial tension and of cell motility. While in the fluid phase there is normal diffusion, in the solid phase we observe sub-diffusion, very slow relaxation, and ageing, thereby strongly suggesting that this phase is glassy. Our results complement previous theoretical work within the vertex model and show that the cellular Potts model can account for the experimentally observed glassy dynamics of some biological tissues.
PACS: 87.17.Aa – Modeling, computer simulation of cell processes / 87.17.Rt – Cell adhesion and cell mechanics / 64.70.kj – Glasses
© EPLA, 2016
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