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Structural and Dynamical Anomalies of a Gaussian Core Fluid: a Mode Coupling Theory Study
We present a theoretical study of transport properties of a liquid comprised
of particles uist1:/home/sokrates/egorov/oldhome/Pap41/Submit > m abs.tex 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 coefficient are computed on the basis of the mode-coupling
theory, with required structural input obtained from integral equation theory.
Both self-diffusion coefficient and viscosity display anomalous density
dependence, with diffusivity increasing and viscosity decreasing 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