论文标题
Lee-Yang启发的功能，包括对有效领域理论中第四阶的贡献
Lee-Yang-inspired functional including contributions to fourth order in effective field theory
论文作者
论文摘要
在过去的几年中，已经开发了一个新的能量密度函数系列，直接受到有效田间理论（EFT）的启发，其中Elyo（扩展的Lee-Yang Orsay）功能。在本文中，提出了包括最近计算出的四阶EFT项的新的Elyo扩展。与以前的版本相比，对谐波陷阱$ \hbarΩ= 10 $ MEV的中子滴入能量的描述略有降低 - 但仍然是合理的 - 但以$ \hbarΩ= 5 $ MEV的改善。此外，获得的中子有效质量与\ textit {ab-initio}估计值更加同意。
In the last years, a new family of energy density functionals directly inspired by effective field theory (EFT) has been developed, among which the ELYO (extended Lee-Yang Orsay) functional. In this paper, a new extension of ELYO that includes the recently calculated fourth-order EFT terms is presented. Compared to the previous version, the description of neutron-drop energies slightly degrades for a harmonic trap $\hbarω=10$ MeV -- yet remaining reasonable -- , but improves for $\hbarω=5$ MeV. Furthermore, the obtained neutron effective mass agrees significantly better with \textit{ab-initio} estimates.
