单组分血浆剪切粘度的精确测定
Accurate Determination of the Shear Viscosity of the One-Component Plasma
摘要：
利用平衡态分子动力学模拟和Green-Kubo关系式计算了单组分等离子体的剪切粘滞系数，得到了前所未有的精度。数值和统计的不确定性及其缓解，以提高精度进行了分析。在弱耦合区，我们的结果与Landau-Spitzer预言一致。在中等和强耦合制度，我们的结果被发现在很好的协议与最近获得的结果Yukawa单组分等离子体使用非平衡分子动力学。提供了一个实用的公式，用于评估跨耦合制度的粘度系数，从弱耦合制度凝固阈值。结果被用来测试在文献中发现的粘度系数的理论预测。
英文摘要：
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.
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