论文标题
Fitaik：计算最小二乘拟合原子过渡概率的软件包。应用于ER+灯笼离子
FitAik: a package to calculate least-square fitted atomic transitions probabilities. Application to the Er+ lanthanide ion
论文作者
论文摘要
我们提出了一种在我们的新软件包\ textit {fitaik}中实现的新方法，以使用单声电子过渡积分$ \ langle n \ ell | r |，以执行计算和实验原子过渡概率的最小二乘拟合。 n'\ ell'\ rangle $（带有$ r $电子径向坐标）作为可调量。 \ textIt {fitaik}与Cowan套件连接到代码套件，为此，它会自动写入输入文件并读取输出文件。我们以ER $^{+} $ ion的示例说明了我们的过程，该$^{+} $ ion为此，发现计算和实验性爱因斯坦系数之间的一致性非常好。 \ emph {fitaik}的源代码可以在gitlab上找到，并且计算出的爱因斯坦系数存储在我们的新数据库Caddiacs中。它们还用于计算ER $^+$的动态偶极极化性。
We present a new method implemented in our new package \textit{FitAik}, to perform least-squares fitting of calculated and experimental atomic transition probabilities, by using the mono-electronic transition integrals $\langle n\ell |r| n'\ell' \rangle$ (with $r$ the electronic radial coordinate) as adjustable quantities. \textit{FitAik} is interfaced to the Cowan suite of codes, for which it automatically writes input files and reads output files. We illustrate our procedure with the example of Er$^{+}$ ion, for which the agreement between calculated and experimental Einstein coefficients is found to be very good. The source code of \emph{FitAik} can be found on GitLab, and the calculated Einstein coefficients are stored in our new database CaDDiACs. They are also used to calculate the dynamic dipole polarizability of Er$^+$.
