测量原子中7s ^{2}S_{1/2}水平的静态斯特克转移
Jonah A Quirk1,2, Aidan Jacobsen3, Amy Damitz1,2
1Department of Physics and Astronomy, Purdue University, West Lafayette, Indiana 47907, USA.
Physical review letters
|June 21, 2024
概括
我们精确地测量了-133原子的DC Stark转移,产生了一个新的值,解决了原子极化计算中的差异. 这一进步有助于理解原子属性,并提高实验准确度.
科学领域:
- 原子物理 原子物理
- 量子力学就是量子力学.
- 频谱学是一种光谱学.
背景情况:
- 原子转换的DC Stark转移对于理解原子属性和精确测量的应用至关重要.
- 之前对-133原子转换中的斯塔克转移的测量显示出差异,阻碍了对原子参数的准确计算.
- 准确确定矢量过渡极化性对于各种原子物理实验和理论模型至关重要.
研究的目的:
- 为了执行一个新的,高精度测量DC Stark转移的6s → 7s过渡在原子-133.3.
- 使用精确的Stark转移值来重新计算关键的原子参数,包括减少二极管矩阵元素和矢量过渡极化性.
- 解决用于确定矢量极化性的不同实验技术之间的关键差异.
主要方法:
- 对原子-133.3中的6s $^{2}$S$_{1/2}$→7s $^{2}$S$_{1/2}$过渡进行了DC Stark转移的精确测量.
- 测量到的Stark转移值被用来重新计算减少的二极子矩阵元素的数量 7s MojaveR Mojave7p$_{j}$.
- 对于6s→7s过渡的向量过渡极化性,β̃,是使用精确的Stark转移测量来确定的.
主要成果:
- 获得了对原子-133的DC Stark转移的新精度测量:0.72246(29) Hz(V/cm) $^{-2}$.
- 这一结果与之前的测量差异约为0.5%,相当于4.7σ的偏差.
- 重计算的向量过渡极化度是β̃ = 27.043(36) a$_{0}^{3}$,这有助于解决现有的差异.
结论:
- 对DC Stark转移的新精度测量为原子-133.3提供了更准确的值.
- 重计算的原子参数,特别是矢量过渡极化性,现在与更广泛的实验数据相一致.
- 这项工作有助于解决矢量极化性确定中的关键差异,提高了原子物理数据的可靠性.
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