Numerical solutions for geometry-induced twist transitions in a liquid crystal confined between a sinusoidal grating at the top and a flat surface at the bottom. The color plots are for physical (left) and unphysical (right) values of the surface elastic constant, respectively.
From the article:
Geometrically-Controlled Twist Transitions in Nematic CellsPedro Patrício, M. M. Telo da Gama, and S. Dietrich
Phys. Rev. Lett. 88, 245502 (2002)
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