论文标题
QED计算电离能量为$ 1snd $州的氦气计算
QED calculation of ionization energies of $1snd$ states in helium
论文作者
论文摘要
$ 1Snd \ $ $状态的电离能量的量子电动力学（QED）计算是为氦原子进行的。我们将先前已知的相对论和QED效应重现为$Mα^5 $，并通过计算完整的$Mα^6 $校正来扩展理论。 $Mα^6 $效应的总贡献显示出比以前估计的要小得多，这是由于该校正的辐射和非辐射部分之间的大量取消。由于我们的计算，我们确认了先前报道的过渡能量与$ ND $ - $ 2S $和$ ND $ - $ 2P $ transitions的过渡能量和理论预测之间的偏差。分析了这种差异的可能原因。
Quantum electrodynamical (QED) calculations of ionization energies of the $1snd\,D$ states are performed for the helium atom. We reproduce the previously known relativistic and QED effects up to order $mα^5$ and extend the theory by calculating the complete $mα^6$ correction. The total contribution of the $mα^6$ effects is shown to be much smaller than previously estimated, due to a large cancelation between the radiative and non-radiative parts of this correction. As a result of our calculations, we confirm the previously reported deviations between measured transition energies and theoretical predictions for the $nD$--$2S$ and $nD$--$2P$ transitions. Possible reasons for this discrepancy are analyzed.
