Anomalous glassy dynamics in simple models of dense biological tissue

作者:Sussman Daniel M*; Paoluzzi M; Marchetti M Cristina; Manning M Lisa
来源:EPL, 2018, 121(3): 36001.
DOI:10.1209/0295-5075/121/36001

摘要

In order to understand the mechanisms for glassy dynamics in biological tissues and shed light on those in non-biological materials, we study the low-temperature disordered phase of 2D vertex-like models. Recently it has been noted that vertex models have quite unusual behavior in the zero-temperature limit, with rigidity transitions that are controlled by residual stresses and therefore exhibit very different scaling and phenomenology compared to particulate systems. Here we investigate the finite-temperature phase of two-dimensional Voronoi and Vertex models, and show that they have highly unusual, sub-Arrhenius scaling of dynamics with temperature. We connect the anomalous glassy dynamics to features of the potential energy landscape associated with zero-temperature inherent states.

  • 出版日期2018-2