论文标题
使用测试粒子插入测量流体中的多体分布功能
Measuring Many-Body Distribution Functions in Fluids using Test-Particle Insertion
论文作者
论文摘要
我们得出了方程的层次结构，该方程允许通过$ 1 $ 1 $和$ n $粒子的测试粒子插入来测量一般的$ n $ body分布函数，并成功地将其应用于简单流体中的配对和三体分布函数。基于插入的方法克服了常规距离图方法的缺点，提供了增强的结构分辨率和更直接的归一化。它们将在表征不均匀流体的结构和研究液态理论中的闭合近似值方面特别有用。
We derive a hierarchy of equations which allow a general $n$-body distribution function to be measured by test-particle insertion of between $1$ and $n$ particles, and successfully apply it to measure the pair and three-body distribution functions in a simple fluid. The insertion-based methods overcome the drawbacks of the conventional distance-histogram approach, offering enhanced structural resolution and a more straightforward normalisation. They will be especially useful in characterising the structure of inhomogeneous fluids and investigating closure approximations in liquid state theory.
