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8 papers · 2 filters
Isotropic-nematic transition in hard-rod fluids: relation between continuous and restricted-orientation models
Kostya Shundyak, René van Roij
We explore models of hard-rod fluids with a finite number of allowed orientations, and construct their bulk phase diagrams within Onsager's second virial theory. For a one-componen…
Free planar isotropic-nematic interfaces in binary hard-rod fluids
Kostya Shundyak, Rene van Roij
Within the Onsager theory we study free planar isotropic-nematic interfaces in binary mixtures of hard rods. For sufficiently different particle shapes the bulk phase diagrams of t…
Longitudinal sound mode of a Bose-Einstein condensate in an optical lattice
J. -P. Martikainen, H. Stoof
We examine the effect of the transverse breathing mode on the longitudinal sound propagation in a Bose-Einstein condensate in a one-dimensional optical lattice. In particular, we d…
Capillary Condensation and Interface Structure of a Model Colloid-Polymer Mixture in a Porous Medium
Paul P. F. Wessels, Matthias Schmidt, Hartmut Löwen
We consider the Asakura-Oosawa model of hard sphere colloids and ideal polymers in contact with a porous matrix modeled by immobilized configurations of hard spheres. For this tern…
Reaching large lengths and long times in polymer dynamics simulations
Alexander van Heukelum, G. T. Barkema
A lattice model is presented for the simulation of dynamics in polymeric systems. Each polymer is represented as a chain of monomers, residing on a sequence of nearest-neighbor sit…
Isotropic-nematic phase behavior of length polydisperse hard rods
H. H. Wensink, G. J. Vroege
The isotropic-nematic phase behavior of length polydisperse hard rods with arbitrary length distributions is calculated. Within a numerical treatment of the polydisperse Onsager mo…