标题： 强耦合Yukawa流体的过剩熵 显示英文标题

标题： Excess entropy of strongly coupled Yukawa fluids

摘要： 强耦合Yukawa流体的熵从多个角度进行了讨论。 首先，证明了在致密流体中可以使用原子动力学的振动范式来获得无需任何可调参数的简单且精确的熵估计。 其次，解释了为什么在凝固点处简单流体的过量熵应具有准普遍值，并证明了Yukawa流体中凝固点熵对屏蔽参数的剩余非常弱的依赖性可以用一个简单的线性函数来描述。 第三，研究了过量熵与凝固温度的标度关系，提出了Rosenfeld-Tarazona标度的一个修改形式，并简要讨论了一些后果。 第四，从过量熵的角度讨论了Yukawa系统相图上Frenkel线的位置，并与文献中的一些预测进行了比较。 第五，利用当代Yukawa流体输运性质的数据集重新检验了输运系数（自扩散、粘度和热导率）的过量熵标度。 这些结果在复杂（尘埃）等离子体、胶体悬浮液、电解质和其他具有软对势相互作用的相关系统背景下可能具有特别的兴趣。 显示英文摘要

摘要： The entropy of strongly coupled Yukawa fluids is discussed from several perspectives. First, it is demonstrated that a vibrational paradigm of atomic dynamics in dense fluids can be used to obtain a simple and accurate estimate of the entropy without any adjustable parameters. Second, it is explained why a quasiuniversal value of the excess entropy of simple fluids at the freezing point should be expected, and it is demonstrated that a remaining very weak dependence of the freezing point entropy on the screening parameter in the Yukawa fluid can be described by a simple linear function. Third, a scaling of the excess entropy with the freezing temperature is examined, a modified form of the Rosenfeld-Tarazona scaling is put forward, and some consequences are briefly discussed. Fourth, the location of the Frenkel line on the phase diagram of Yukawa systems is discussed in terms of the excess entropy and compared with some predictions made in the literature. Fifth, the excess entropy scaling of the transport coefficients (self-diffusion, viscosity, and thermal conductivity) is reexamined using the contemporary datasets for the transport properties of Yukawa fluids. The results could be of particular interest in the context of complex (dusty) plasmas, colloidal suspensions, electrolytes, and other related systems with soft pairwise interactions.