Condensed Matter Theory

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Control of drop positioning using chemical patterning -: art. no. 024103

APPLIED PHYSICS LETTERS 87:2 (2005) ARTN 024103

Authors:

A Dupuis, J Léopoldès, DG Bucknall, JM Yeomans
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Density-functional study of interfacial properties of colloid-polymer mixtures

JOURNAL OF PHYSICAL CHEMISTRY B 109:14 (2005) 6640-6649

Authors:

A Moncho-Jordá, J Dzubiella, JP Hansen, AA Louis
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From concentration profiles to polymer osmotic equations of state

CHEMPHYSCHEM 6:9 (2005) 1760-1764

Authors:

CI Addison, JP Hansen, AA Louis
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Itinerancy effects on spin correlations in one-dimensional Mott insulators

PHYSICAL REVIEW B 71:2 (2005) ARTN 020405

Authors:

MJ Bhaseen, FHL Essler, A Grage
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Lattice Boltzmann simulations of cholesteric liquid crystals: Permeative flows, doubly twisted textures and cubic blue phases

MOL CRYST LIQ CRYST 435 (2005) 845-858

Authors:

D Marenduzzo, A Dupuis, JM Yeomans, E Orlandini

Abstract:

We present a lattice Boltzmann algorithm to solve the Beris-Edwards equations of motion for a cholesteric liquid crystal. We use our algorithm to investigate permeative flow. We find that, for helices pinned at the boundary, a small body force leads to a huge viscosity increase whereas larger ones induce no increase. This shear thinning is in agreement with experiments. If instead, the helix lies perpendicular to the plates, there is almost no viscosity increase. For strong forcing, we identify a flow-induced double twist in the director field. We compare this texture with the static double twist of cubic blue phases.
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