Hedgehog–antihedgehog pair annihilation to a static soliton

P.E. Cladis and Helmut R. Brand

Physica A: Statistical Mechanics and its Applications, 2003, vol. 326, issue 3, 322-332

Abstract: We experimentally demonstrate that, for sufficiently small perturbations, a hedgehog (H) and antihedgehog (H̄) point defect in nematic liquid crystals can be asymptotically free. For larger external perturbations, we find that the annihilation dynamics of an HH̄ pair to a static soliton is asymmetric and shows two time regimes. A model for the experimental observations in the absence of smectic A fluctuations is proposed.

Keywords: Solitons in liquid crystals; Point defect dynamics; Non-equilibrium phenomena (search for similar items in EconPapers)
Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:326:y:2003:i:3:p:322-332

DOI: 10.1016/S0378-4371(03)00254-1

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