论文标题
将密度函数近似与理论联系起来
On connecting density functional approximations to theory
论文作者
论文摘要
通常，密度功能模型被认为是与密度功能理论的近似值，但是，两者之间没有系统的联系，这可能会使我们怀疑链接。通过使用自旋密度的论证的模糊性，可以进一步实施这种态度。质疑密度功能模型的基础会导致寻找替代解释。将它们视为使用型号的型号是其中之一。另一个正在考虑密度函数近似值，是推断模型系统中获得的结果的一种方式。
Usually, density functional models are considered approximations to density functional theory, However, there is no systematic connection between the two, and this can make us doubt about a linkage. This attitude can be further enforced by the vagueness of the argumentation for using spin densities. Questioning the foundations of density functional models leads to a search for alternative explanations. Seeing them as using models for pair densities is one of them. Another is considering density functional approximations as a way to extrapolate results obtained in a model system to those of a corresponding physical one.
