Critical Dynamics in a Binary Fluid: Simulations and Finite-Size Scaling

6533b82dfe1ef96bd1291d20

RESEARCH PRODUCT

Critical Dynamics in a Binary Fluid: Simulations and Finite-Size Scaling

Subir K. Das Kurt Binder Jan V. Sengers Michael E. Fisher Jürgen Horbach

subject

Physics Binary fluid Statistical Mechanics (cond-mat.stat-mech)Shear viscosity Dynamics (mechanics)FOS: Physical sciences General Physics and Astronomy Binary number Amplitude Point (geometry)Statistical physics Anomaly (physics)Scaling Condensed Matter - Statistical Mechanics

description

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 {\it 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.

year	journal	country	edition	language
2006-07-11	Physical Review Letters

https://doi.org/10.1103/physrevlett.97.025702

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