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Reorientational dynamics of conjugated nematic point defects

Sonnet, A.M. and Virga, E.G. (2010) Reorientational dynamics of conjugated nematic point defects. Liquid Crystals, 37 (6-7). pp. 785-797. ISSN 0267-8292

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Abstract

To appreciate the universal qualitative features of defect annihilation in nematic liquid crystals, we study how the viscous force of reorientational dynamics behaves under a transformation that reverses the sign of the defect's topological charge. As an illustration of our general results, we consider a class of point defects that were first studied by A. Saupe. The reorientational viscous forces acting on them differ dramatically from those acting on line defects.