Hydrodynamics of topological defects in nematic liquid crystals
Geza Toth, Colin Denniston, Julia M. Yeomans
Abstract
We show that back-flow, the coupling between the order parameter and the velocity fields, has a significant effect on the motion of defects in nematic liquid crystals. In particular the defect speed can depend strongly on the topological strength in two dimensions and on the sense of rotation of the director about the core in three dimensions.
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