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  • Giuseppe Pucci

Topologically non-equivalent textures generated by the nematic electrohydrodynamics

Updated: Mar 25, 2021

G. Pucci, F. Carbone, G. Lombardo, C. Versace and R. Barberi. Topologically non-equivalent textures generated by the nematic electrohydrodynamics. Liq. Cryst. (2019).

Some classes of nematic liquid crystals can be driven through turbulent regimes when forced by an external electric field. In contrast to isotropic fluids, a turbulent nematic exhibits a transition to a stochastic regime that is characterised by a network of topological defects. We study the deformations arising after the electric field has been switched-off. In contrast to the turbulent regime, the relaxation of this topological-defect regime involves the annihilation of an interlacement of defect lines. We show that these defect lines separate regions of the nematic having topologically non-equivalent textures.

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