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cond-mat.soft2025
Geometric Frustration in Twist-Bend Nematic Droplets
Joseph Pollard, Richard G. Morris
Liquid crystals formed of bent-core molecules are exotic materials that exhibit the twist-bend nematic phase. This arises when an energetic preference for nonzero local bend distor…
cond-mat.soft2024
Defect Dynamics in Cholesterics: Beyond the Peach-Koehler Force
Joseph Pollard, Richard G. Morris
The Peach-Koehler force between disclination lines was originally formulated in the study of crystalline solids, and has since been adopted to provide a notion of interactions betw…
cond-mat.soft2024
Morse Theory and Meron Mediated Interactions Between Disclination Lines in Nematics
Joseph Pollard, Richard G. Morris
The topological understanding of nematic liquid crystals is traditionally centered on singularities, or defects, and their classification via homotopy theory. However, this approac…