Phase separation of a model binary polymer solution in an external field
(2005)
Bethe Ansatz Solution of the Asymmetric Exclusion Process with Open Boundaries
(2005)
Rheology of cholesteric blue phases.
Phys Rev Lett 95:9 (2005) 097801
Abstract:
Cholesteric blue phases are a spectacular example of disclination line networks. Here we numerically investigate their response to an imposed Poiseuille flow. We show that shear forces bend and twist and can unzip the disclination lines. Under gentle forcing the network opposes the flow and the apparent viscosity is large. With increased forcing we find strong shear thinning corresponding to the disruption of the network. As the viscosity starts to drop, the imposed flow sets the network into motion. Disclinations break up and re-form with their neighbors along the flow.Electrostatic traps for dipolar excitons
Physical Review B - Condensed Matter and Materials Physics 72:7 (2005)
Abstract:
We consider the design of two-dimensional electrostatic traps for dipolar indirect excitons. We show that the exciton dipole-dipole interaction, combined with the in-plane electric fields that arise due to the trap geometry, constrains the maximal density and lifetime of trapped excitons. We derive an analytic estimate of these values and determine their dependence on the trap geometry, thus suggesting the optimal design for high density trapping as a route for observing excitonic Bose-Einstein condensation. © 2005 The American Physical Society.Nonlinear dynamics of a dense two-dimensional dipolar exciton gas
(2005)