Turnover generates outward flows from defect cores that overcome elastic attraction, stabilizing topological defects in compressible active polar fluids and producing lattices, foams, and vortex glasses.
Orientational properties of nematic disclinations
1 Pith paper cite this work. Polarity classification is still indexing.
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abstract
Topological defects play a pivotal role in the physics of liquid crystals and represent one of the most prominent and well studied aspects of mesophases. While in two-dimensional nematics, disclinations are traditionally treated as point-like objects, recent experimental studies on active nematics have suggested that half-strength disclinations might in fact possess a polar structure. In this article, we provide a precise definition of polarity for half-strength nematic disclinations, we introduce a simple and robust method to calculate this quantity from experimental and numerical data and we investigate how the orientational properties of half-strength disclinations affect their relaxational dynamics.
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Defect states in compressible active polar fluids with turnover
Turnover generates outward flows from defect cores that overcome elastic attraction, stabilizing topological defects in compressible active polar fluids and producing lattices, foams, and vortex glasses.