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Observing Correlated Production of Defects-Antidefects in Liquid Crystals
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Observing Correlated Production of Defects-Antidefects in Liquid Crystals
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We present observations of strength one defects and antidefects formed in isotropic-nematic phase transition in a thin layer of nematic liquid crystals, using a cross-polarizer setup. We measure the widths of the distributions of {\it net} winding number in small regions, and determine the exponent characterizing the correlation between defects and antidefects to be 0.26$\pm$0.11, in very good agreement with the value 1/4 predicted by the Kibble mechanism for defect production. We also describe a novel technique to determine the director distribution in observations of defect networks.
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Cited by 1 Pith paper
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Phase separation seeded by Z2 and U(1) topological defects from holography
Holographic simulations demonstrate that Z2 and U(1) topological defects universally seed phase separation, with cores expanding into domains under a double-quench protocol.
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