4 papers
A shape optimization problem for nematic and cholesteric liquid crystal drops
Alessandro Giacomini, Silvia Paparini
We generalize the shape optimization problem for the existence of stable equilibrium configurations of nematic and cholesteric liquid crystal drops surrounded by an isotropic solut…
Inversion Ring in Chromonic Twisted Hedgehogs: Theory and Experiment
Federica Ciuchi, Maria Penelope De Santo, Silvia Paparini +2
Twisted hedgehogs are defects in spherical cavities with homeotropic anchoring for the nematic director that arise when twist distortions are sufficiently less energetic than splay…
Spiraling Defect Cores in Chromonic Hedgehogs
Silvia Paparini, Epifanio G. Virga
An elastic quartic twist theory has recently been proposed for chromonic liquid crystals, intended to overcome the paradoxical conclusions encountered by the classical Oseen-Frank…
Paradoxes for Chromonic Liquid Crystal Droplets
Silvia Paparini, Epifanio G. Virga
Chromonic liquid crystals constitute a novel lyotropic phase, whose elastic properties have so far been modeled within the classical Oseen-Frank theory, provided that the twist con…