Abstract
We present a theoretical study of transport properties of a liquid comprised of particles interacting via Gaussian core pair potential. Shear viscosity and self-diffusion coefficients are computed on the basis of the mode-coupling theory, with required structural input obtained from integral equation theory. Both the self-diffusion coefficient and the viscosity display anomalous density dependence, with diffusivity increasing and viscosity decreasing and with density within a particular density range along several isotherms below a certain temperature. Our theoretical results for both transport coefficients are in good agreement with the simulation data.
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