Condensed Matter Theory

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Scaling behaviour and control of nuclear wrinkling

Nature Physics Springer Nature 19:12 (2023) 1927-1935

Authors:

Jonathan A Jackson, Nicolas Romeo, Alexander Mietke, Keaton J Burns, Jan F Totz, Adam C Martin, J枚rn Dunkel, Jasmin Imran Alsous

Shape-tension coupling produces nematic order in an epithelium vertex model

Physical Review Letters American Physical Society 131:22 (2023) 228301

Authors:

Jan Rozman, Julia M Yeomans, Rastko Sknepnek

Abstract:

We study the vertex model for epithelial tissue mechanics extended to include coupling between the cell shapes and tensions in cell-cell junctions. This coupling represents an active force which drives the system out of equilibrium and leads to the formation of nematic order interspersed with prominent, long-lived +1 defects. The defects in the nematic ordering are coupled to the shape of the cell tiling, affecting cell areas and coordinations. This intricate interplay between cell shape, size, and coordination provides a possible mechanism by which tissues could spontaneously develop long-range polarity through local mechanical forces without resorting to long-range chemical patterning.

Itinerant Magnetism in the Triangular Lattice Hubbard Model at Half-doping: Application to Twisted Transition-Metal Dichalcogenides

(2023)

Authors:

Yuchi He, Roman Rausch, Matthias Peschke, Christoph Karrasch, Philippe Corboz, Nick Bultinck, SA Parameswaran

Rheology of Suspensions of Flat Elastic Particles

Physical Review Letters American Physical Society (APS) 131:19 (2023) 194002

Authors:

Jens Eggers, Tanniemola B Liverpool, Alexander Mietke

Enhanced diffusion of tracer particles in nonreciprocal mixtures

Physical Review E American Physical Society (APS) 108:5 (2023) 054606

Authors:

Anthony Benois, Marie Jardat, Vincent Dahirel, Vincent D茅mery, Jaime Agudo-Canalejo, Ramin Golestanian, Pierre Illien