论文标题
液体中瞬时相关场的自由能功能：闭合的现场理论推导
Free-energy functional of instantaneous correlation field in liquids: field-theoretic derivation of the closures
论文作者
论文摘要
本文提出了一种统一的方法，用于制定涵盖常规液态理论的现场理论扰动理论。首先，瞬时相关场的自由能函数是从大电位的功能综合表示获得的。接下来，我们证明瞬时自由能功能在平均场近似中的相关函数之间产生封闭关系。值得注意的是，所获得的封闭关系涵盖了液态理论中引入的各种近似封闭。
This paper presents a unified method for formulating a field-theoretic perturbation theory that encompasses the conventional liquid state theory. First, the free-energy functional of instantaneous correlation field is obtained from the functional-integral representation of the grand potential. Next, we demonstrate that the instantaneous free-energy functional yields a closure relation between the correlation functions in the mean-field approximation. Notably, the obtained closure relation covers a variety of approximate closures introduced in the liquid state theory.
