title: Critical dynamics in a binary fluid: simulations and finite-size scaling.
abstract: We report comprehensive simulations of the critical dynamics of a symmetric binary Lennard-Jones mixture near its consolute point. The self-diffusion coefficient exhibits no detectable anomaly. The data for the shear viscosity and the mutual-diffusion coefficient are fully consistent with the asymptotic power laws and amplitudes predicted by renormalization-group and mode-coupling theories provided finite-size effects and the background contribution to the relevant Onsager coefficient are suitably accounted for. This resolves a controversy raised by recent molecular simulations.
authors.affiliation: Institute for Physical Science and Technology, University of Maryland, College Park, 20742, USA.
authors.forename: Subir K
authors.initials: SK
authors.lastname: Das
authors.forename: Michael E
authors.initials: ME
authors.lastname: Fisher
authors.forename: Jan V
authors.initials: JV
authors.lastname: Sengers
authors.forename: Jürgen
authors.initials: J
authors.lastname: Horbach
authors.forename: Kurt
authors.initials: K
authors.lastname: Binder