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Updated: Jul 19, 2026

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
Published on: October 31, 2019
Quadrupolar projection of excluded-volume interactions in biaxial nematic liquid crystals
Riccardo Rosso1, Epifanio G Virga
1Dipartimento di Matematica and CNISM, Università di Pavia, via Ferrata 1, 27100 Pavia, Italy.
Abstract:
We compute the quadrupolar approximation to the excluded-volume interaction between hard spherocuboids, which applies to both platelets and spheroplatelets as special cases. We show that this approximation can be written as the superposition of two London interactions: one attractive and the other repulsive. This conclusion also proves why the phase diagram for the excluded-volume interaction of spherocuboids is expected to feature a direct isotropic-to-biaxial transition at a single Landau point.
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