Thermodynamics of Yukawa fluids near the one-component-plasma limit

TL;DR

This paper investigates the thermodynamics of weakly screened Yukawa fluids near the one-component-plasma limit, revealing scaling behaviors that enable accurate estimation of thermodynamic properties in two and three dimensions.

Contribution

It demonstrates that the thermal excess internal energy of Yukawa fluids exhibits specific scaling near the OCP limit, providing a practical tool for thermodynamic estimations.

Findings

Scaling laws for excess internal energy in 2D and 3D Yukawa fluids.

Accurate thermodynamic property estimations using the derived scaling.

Application to two-dimensional fluids with calculated thermodynamic quantities.

Abstract

Thermodynamics of weakly screened (near the one-component-plasma limit) Yukawa fluids in two and three dimensions is analyzed in detail. It is shown that the thermal component of the excess internal energy of these fluids, when expressed in terms of the properly normalized coupling strength, exhibits the scaling pertinent to the corresponding one-component-plasma limit (the scalings differ considerably between the two- and three-dimensional situations). This provides us with a simple and accurate practical tool to estimate thermodynamic properties of weakly screened Yukawa fluids. Particular attention is paid to the two-dimensional fluids, for which several important thermodynamic quantities are calculated to illustrate the application of the approach.