AI 中文总结
该研究将变分后角动量投影哈特利-福克计算的电磁可观测量与全组态相互作用结果基准测试，发现其在多数核中符合度良好，是全组态相互作用的有效替代方案。
AI 中文摘要
我们在壳模型基组下，将变分后角动量投影哈特利-福克计算得到的电磁跃迁和矩（电四极矩、磁偶极矩）与全组态相互作用对角化结果进行基准测试。对于这类简单近似，我们发现其符合度相当好，包括许多奇A核和奇奇核。正如之前关于激发谱的研究，在形状共存的情况下结果常得到改善。此处我们选取了sd价空间和pf价空间中的部分案例。电四极矩和跃迁正如预期那样，常（但非总是）被很好地重现，尤其在偶偶核中；而磁偶极矩矩和跃迁整体上比预期更好。这延续了对投影哈特利-福克的基准测试，该方法是全组态相互作用的简单且有效的替代方案，也是许多其他多体方法的基础。
英文摘要
We benchmark electromagnetic transitions and moments (electric quadrupole and magnetic dipole) in angular-momentum projected-after-variation Hartree-Fock calculations against full configuration-interaction diagonalization results in a shell model basis. For such a simple approximation we find reasonably good agreement, including for many odd-$A$ and odd-odd nuclides. As previous work on excitation spectra found, results are frequently improved in cases with shape coexistence. Here we considered select cases from the $sd$- and $pf$-valences spaces. While electric quadrupole moments and transitions are, as one might expect, frequently (though not always) well reproduced, especially in even-even nuclides, magnetic dipole moments and transitions are overall better than expected. This continues the benchmarking of projected Hartree-Fock as a simple yet effective alternative to full configuration-interaction as well as an underlying foundation for many other many-body methods.
Comments26 pages, 22 figures, 11 tables
