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- W2941873305 abstract "We study dry, dense active nematics at both particle and continuous levels. Specifically, extending the Boltzmann-Ginzburg-Landau approach, we derive well-behaved hydrodynamic equations from a Vicsek-style model with nematic alignment and pairwise repulsion. An extensive study of the phase diagram shows qualitative agreement between the two levels of description. We find in particular that the dynamics of topological defects strongly depends on parameters and can lead to ``arch'' solutions forming a globally polar, smectic arrangement of N'eel walls. We show how these configurations are at the origin of the defect ordered states reported previously. This work offers a detailed understanding of the theoretical description of dense active nematics directly rooted in their microscopic dynamics." @default.
- W2941873305 created "2019-05-03" @default.
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- W2941873305 date "2019-12-18" @default.
- W2941873305 modified "2023-10-18" @default.
- W2941873305 title "Understanding Dense Active Nematics from Microscopic Models" @default.
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- W2941873305 doi "https://doi.org/10.1103/physrevlett.123.258001" @default.
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