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Shear viscosity of two-dimensional Yukawa systems in liquid state

Bin Liu·J. Goree
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Abstract

The shear viscosity of a two-dimensional (2D) liquid was calculated using equilibrium molecular dynamics simulations with a Yukawa potential. The shear viscosity has a minimum, at a Coulomb coupling parameter of about 17, arising from the temperature dependence of the kinetic and potential contributions. Previous calculations of 2D viscosity were less extensive, and for a different potential. The stress autocorrelation function was found to decay rapidly, contrary to some earlier work. These results are useful for 2D condensed matter systems and are compared to a recent dusty plasma experiment.

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Bin Liu, J. Goree. 2005-01-31. Shear viscosity of two-dimensional Yukawa systems in liquid state. https://doi.org/10.1103/physrevlett.94.185002

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