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arXiv 2011.10644cond-mat.soft
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外场中硬球流体的相互作用

Interacting hard-sphere fluids in an external field

Benaoumeur Bakhti, Gerhard Müller

摘要:

提出了一种研究任意外场中相互作用流体平衡性质的新方法。该流体由单分散的球形颗粒组成,具有硬核排斥和任意形状和有限范围的附加相互作用。我们的分析方法是准确的,在一维,并提供了证明良好的近似在更高的维度。它可以处理同构和异构环境。我们推导出一个方程的对分布函数。该解决方案,要评估的数值,在一般情况下,或分析的特殊情况下,进入表达式的熵和自由能泛函。对于某些一维系统,我们的方法产生解析解,再现可用的精确结果从不同的方法。

英文摘要:

We present a new method for studying equilibrium properties of interacting fluids in an arbitrary external field. The fluid is composed of monodisperse spherical particles with hard-core repulsion and additional interactions of arbitrary shape and limited range. Our method of analysis is exact in one dimension and provides demonstrably good approximations in higher dimensions. It can cope with homogeneous and heterogeneous environments. We derive an equation for the pair distribution function. The solution, to be evaluated numerically, in general, or analytically for special cases, enters expressions for the entropy and free energy functionals. For some one-dimensional systems, our approach yields analytic solutions, reproducing available exact results from different approaches.

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。

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