Wavevector-dependent shear viscosity in Lennard-Jones liquids

Computer simulation data for the generalized wavevector-dependent shear viscosity η(q) are reported for the first time in a Lennard-Jones fluid. The transverse current autocorrelation functions are also presented. The results are carefully compared with simple viscoelectric theory. Although the latter is found to give a respectable description of the data, discrepancies are pointed out.

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