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14 papers · 2 filters
Forming a cube from a sphere with tetratic order
O. V. Manyuhina, M. J. Bowick
Composed of square particles, the tetratic phase is characterised by a four-fold symmetry with quasi-long-range orientational order but no translational order. We construct the ela…
Propagating stress waves during epithelial expansion
Shiladitya Banerjee, Kazage J. C. Utuje, M. Cristina Marchetti
Coordinated motion of cell monolayers during epithelial wound healing and tissue morphogenesis involves mechanical stress generation. Here we propose a model for the dynamics of ep…
Effects of scars on crystalline shell stability under external pressure
Duanduan Wan, Mark J. Bowick, Rastko Sknepnek
We study how the stability of spherical crystalline shells under external pressure is influenced by the defect structure. In particular, we compare stability for shells with a mini…
Active Viscoelastic Matter: from Bacterial Drag Reduction to Turbulent Solids
E. J. Hemingway, A. Maitra, S. Banerjee +4
A paradigm for internally driven matter is the active nematic liquid crystal, whereby the equations of a conventional nematic are supplemented by a minimal active stress that viola…
Hydrodynamics of Turning Flocks
Xingbo Yang, M. Cristina Marchetti
We present a hydrodynamic model of flocking that generalizes the familiar Toner-Tu equations to incorporate turning inertia of well-polarized flocks. The continuum equations contro…
Topology and Dynamics of Active Nematic Vesicles
Felix C. Keber, Etienne Loiseau, Tim Sanchez +6
Engineering synthetic materials that mimic the remarkable complexity of living organisms is a fundamental challenge in science and technology. We study the spatiotemporal patterns…