Accurate Determination of the Shear Viscosity of the One-Component Plasma

Abstract

The shear viscosity coefficient of the one-component plasma is calculated with unprecedented accuracy using equilibrium molecular dynamics simulations and the Green-Kubo relation. Numerical and statistical uncertainties and their mitigation for improving accuracy are analyzed. In the weakly coupled regime, our the results agree with the Landau-Spitzer prediction. In the moderately and strongly coupled regimes, our results are found in good agreement with recent results obtained for the Yukawa one-component plasma using non-equilibrium molecular dynamics. A practical formula is provided for evaluating the viscosity coefficient across coupling regimes, from the weakly-coupled regime up to solidification threshold. The results are used to test theoretical predictions of the viscosity coefficients found in the literature.

arXiv comment13 pages, 10 figures

References in corpus (2)

• Viscosity and mutual diffusion in strongly asymmetric binary ionic mixtures
• Extending plasma transport theory to strong coupling through the concept of an effective interaction potential

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