The screening of a test charge by partially degenerate non-ideal free electrons at conditions related to warm dense matter and dense plasmas is investigated using linear response theory and the local field correction based on ab initio Quantum Monte-Carlo simulations data. The analysis of the obtained results is performed by comparing to the random phase approximation and the Singwi–Tosi–Land–Sjölander approximation. The applicability of the long-wavelength approximation for the description of screening is investigated. The impact of electronic exchange-correlations effects on structural properties and the applicability of the screened potential from linear response theory for the simulation of the dynamics of ions are discussed.

中文翻译：

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在温暖的致密物质和致密的非理想等离子体条件下筛选自由电子气体中的测试电荷

使用线性响应理论和基于 ab initio Quantum Monte-Carlo 模拟数据的局部场校正研究了在与温暖的致密物质和致密等离子体相关的条件下通过部分简并非理想自由电子筛选测试电荷。通过与随机相位近似和 Singwi-Tosi-Land-Sjölander 近似进行比较，对获得的结果进行分析。研究了长波长近似在筛选描述中的适用性。讨论了电子交换相关效应对结构特性的影响以及线性响应理论筛选电位在离子动力学模拟中的适用性。