论文标题
温度致密电子气体的自旋分辨密度响应
Spin-resolved density response of the warm dense electron gas
论文作者
论文摘要
我们为在温暖的物质条件下均匀的电子气体（UEG）的自旋分辨密度响应提供了广泛的新\ emph {ab intio}路径积分蒙特卡洛（PIMC）结果。这使我们能够明确评估以前理论近似的准确性，从而为介电方案的未来发展提供了宝贵的新见解。从物理的角度来看，我们观察到有效电子 - 电子吸引力的非平凡表现，该表现出在强耦合时出现在副岛的静态密度响应函数中，$ r_s \ gtrsim5 $。所有PIMC结果均可在线免费获得，可用于基准测试新的近似值和仿真方案。
We present extensive new \emph{ab initio} path integral Monte Carlo (PIMC) results for the spin-resolved density response of the uniform electron gas (UEG) at warm dense matter conditions. This allows us to unambiguously assess the accuracy of previous theoretical approximations, thereby providing valuable new insights for the future development of dielectric schemes. From a physical perspective, we observe a nontrivial manifestation of an effective electron--electron attraction that emerges in the spin-offdiagonal static density response function at strong coupling, $r_s\gtrsim5$. All PIMC results are freely available online and can be used to benchmark new approximations and simulation schemes.
