论文标题
评论欧洲报纸。物理。 J. A（2019）55：150
Comment on the paper Eur. Phys. J. A (2019) 55:150
论文作者
论文摘要
该研究的结论以欧元的形式出版。物理。 J. A（2019）55：150通过修订了使用谐波振荡器（HO）基础，最近提出的最近提出的GOGNY D1M*相互作用的相互作用的适当性。当使用坐标空间方法来解决HF方程时（如Eur。Phys。J.A（2019）55：150），使用基于准分位局部近似（QLA）的计算机代码来独立确认HF能量密度时，可以独立证实D1M*的不稳定性。我们确认，坐标空间计算中受影响最大的数量是原点处的空间密度。我们的研究表明，与这些不稳定性有关的一些发现与Eur中使用的论点并不容易调和。物理。 J. A（2019）55：150。例如，某些核（例如$^4 $ he和$^{40} $ Ca）在使用D1M*执行的HF网格点计算中差异，当库仑力关闭时会变得非常稳定。当使用D1M相互作用时，我们还发现了一些核中的不稳定性。最后，观察到了费米级别附近的$ s $ - 欧洲宽度与不稳定性的出现之间的联系。在使用HO基础时，使用不同大小和振荡器参数的HO基础进行了几项收敛和稳定性研究，以证明有限核的鲁棒性。
The conclusions of the study published as Eur. Phys. J. A (2019) 55:150 questioning the adequacy of the recently proposed Gogny D1M* interaction for finite-nuclei calculations using harmonic oscillator (HO) basis are revised. The existence of an instability in finite nuclei for D1M* when coordinate-space methods are used to solve the HF equations (as shown in Eur. Phys. J. A(2019) 55:150) is independently confirmed using a computer code based on a quasi-local approximation (QLA) to the HF energy density with finite-range forces. We confirm that the most affected quantity in the coordinate-space calculation is the spatial density at the origin. Our study reveals that some findings concerning these instabilities are not easy to reconcile with the arguments used in Eur. Phys. J. A (2019) 55:150. For instance, some nuclei such as $^4$He and $^{40}$Ca, which diverge in HF mesh-point calculations performed with D1M*, become perfectly stable when Coulomb force is switched off. We have also found instabilities in some nuclei when the D1M interaction is used. Finally, a connection between the occupancy of $s$-orbitals near the Fermi level and the appearance of instabilities is observed. Several convergence and stability studies are performed with HO basis of different sizes and oscillator parameters to demonstrate the robustness of the D1M* results for finite nuclei when the HO basis is used.
