arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1208.6592cond-mat.soft
收藏

用基本测度理论处理非均匀硬球流体的关联函数

Using Fundamental Measure Theory to Treat the Correlation Function of the Inhomogeneous Hard-Sphere Fluid

Jeff Schulte, Patrick Kreitzberg, Chris Haglund, David Roundy

摘要:

本文研究了非均匀硬球流体在接触时的关联函数值。这个量在统计缔合流体理论(SAFT)中起着至关重要的作用,SAFT是许多最近发展的经典密度泛函的基础。我们定义了两个平均值的关联函数在接触,并推导出公式,他们每个人从白熊版本的基本测量理论功能,使用假设的热力学一致性。我们测试这些公式,以及现有的两个公式对蒙特卡罗模拟,并发现良好的协议之间的蒙特卡罗数据和我们的平均关联函数。

英文摘要:

We investigate the value of the correlation function of an inhomogeneous hard-sphere fluid at contact. This quantity plays a critical role in Statistical Associating Fluid Theory (SAFT), which is the basis of a number of recently developed classical density functionals. We define two averaged values for the correlation function at contact, and derive formulas for each of them from the White Bear version of the Fundamental Measure Theory functional, using an assumption of thermodynamic consistency. We test these formulas, as well as two existing formulas against Monte Carlo simulations, and find excellent agreement between the Monte Carlo data and one of our averaged correlation functions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑