In cholesteric liquid crystals, +1/2 disclination lines change winding to -1/2 by emitting a meron tube, and the expansion of this tube, not Peach-Koehler forces, drives defect motion.
Defects in liquid crystals
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Defect Dynamics in Cholesterics: Beyond the Peach-Koehler Force
In cholesteric liquid crystals, +1/2 disclination lines change winding to -1/2 by emitting a meron tube, and the expansion of this tube, not Peach-Koehler forces, drives defect motion.