论文标题
改善中性霓虹虫的光谱知识
Improving the spectroscopic knowledge of neutral Neodymium
论文作者
论文摘要
激光冷却和植物的诱捕已经开放了使用超低偶极气体进行新实验的可能性，例如，用于固态物理学的量子模拟。为了确定新的适合激光冷却的候选者，重要的是要对原子进行精确的光谱知识。沿着这个方向，我们在这里介绍了中性肾上飞机（ND）的能量水平的详细建模，中性肾脏（ND）是属于Lanthanide行的左侧的元素，尚未考虑激光冷却。使用Cowan代码套件中实现的半经验方法，我们特别能够解释200多个属于两个奇偶群的NIST数据库的实验级别。最小二乘拟合步骤后获得的最佳原子参数集可以用于计算将来的辐射过渡概率。
Laser cooling and trapping of lanthanides has opened the possibility to carry out new experiments with ultracold dipolar gases, for example for quantum simulation of solid state physics. To identify new suitable candidates for laser-cooling, it is important to have a precise spectroscopic knowledge of the atom under consideration. Along this direction, we present here a detailed modeling of the energy levels of neutral neodymium (Nd), an element belonging to the left part of the lanthanide row, which has not yet been considered for laser-cooling. Using the semi-empirical method implemented in the Cowan suite of codes, we are in particular able to interpret more than 200 experimental levels of the NIST database belonging to both parities. The optimal set of atomic parameters obtained after the least-square fitting step can serve to calculate radiative transition probabilities in the future.
