论文标题
QED $Mα^7 $效果类似氦的三元状态
QED $mα^7$ effects for triplet states of helium-like ions
论文作者
论文摘要
我们对$ 2^3s $和$ 2^3p $ he-like离子状态的QED效果进行QED效果的量子进行计算。计算的效果与先前从[V. A. Yerokhin和K. Pachucki，物理。 Rev. A 81，022507（2010）]，从而提高了理论准确性。获得的$ 2^3S $ - $ 2^3p_ {0,2} $过渡能量的理论值与可用的实验结果非常吻合，并且先前对核结合强度参数$Zα$中所有订单执行的计算。但是，对于电离能，我们发现$Zα$扩展与全阶计算之间有些不一致，这可能与氦气电离能量的理论和实验结果之间的类似差异有关[V。V。 Patkóš等人，物理。修订版A 103，042809（2021）]。
We perform ab initio calculations of the QED effects of order $mα^7$ for the $2^3S$ and $2^3P$ states of He-like ions. The computed effects are combined with previously calculated energies from [V. A. Yerokhin and K. Pachucki, Phys. Rev. A 81, 022507 (2010)], thus improving the theoretical accuracy by an order of magnitude. The obtained theoretical values for the $2^3S$-$2^3P_{0,2}$ transition energies are in good agreement with available experimental results and with previous calculations performed to all orders in the nuclear binding strength parameter $Zα$. For the ionization energies, however, we find some inconsistency between the $Zα$-expansion and all-order calculations, which might be related to a similar discrepancy between the theoretical and experimental results for the ionization energies of helium [V. Patkóš et al., Phys. Rev. A 103, 042809 (2021)].
