论文标题
用有限数量的颗粒在密度功能理论中研究的干扰核问题
Perturbed nuclear matter studied within Density Functional Theory with a finite number of particles
论文作者
论文摘要
核物质是在密度功能理论（DFT）框架内研究的。我们的方法在受周期性边界条件下的盒子中采用有限数量的核子，以模拟无限的物质并研究其对外部静态电位的反应。我们详细介绍了具有Skyrme样能量密度函数（EDF）的理论形式主义及其针对纯中子物质和对称核物质的计算实施。特别是仔细讨论了旋转轨道的实施。我们的方法应用于核物质静态响应的问题以及扰动对系统的能量，密度和水平结构的影响。我们的工作是我们基于AB的核EDFS计划的关键步骤[Phys。 Rev. C 104，024315（2021）]，因为它铺平了朝着基于AB的计算来约束EDF表面项的目标。
Nuclear matter is studied within the Density Functional Theory (DFT) framework. Our method employs a finite number of nucleons in a box subject to periodic boundary conditions, in order to simulate infinite matter and study its response to an external static potential. We detail both the theoretical formalism and its computational implementation for pure neutron matter and symmetric nuclear matter with Skyrme-like Energy Density Functionals (EDFs). The implementation of spin-orbit, in particular, is carefully discussed. Our method is applied to the problem of the static response of nuclear matter and the impact of the perturbation on the energies, densities and level structure of the system is investigated. Our work is a crucial step in our program of ab initio-based nuclear EDFs [Phys. Rev. C 104, 024315 (2021)] as it paves the way towards the goal of constraining the EDF surface terms on ab initio calculations.
