Abstract
A generalized mode-coupling theory that takes into account molecular-scale effects is presented. Thermodynamic as well as dissipative nonlinearities are included. The theory is used to calculate molecular-scale renormalizations or mode-coupling contributions to the zero-wave-number shear viscosity and to the time-dependent stress-tensor autocorrelation function. For a range of times the theory leads to a stress-tensor autocorrelation function that appears to decay as ${t}^{\mathrm{\ensuremath{-}}3/2}$. The results are in reasonable agreement with computer simulations.
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