发表机构
Georgia Tech Research Institute; Oak Ridge National Laboratory（佐治亚理工学院研究所; 橡树岭国家实验室）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
研究对单个捕获的$^{40}\text{Ca}^+$离子的特定g因子比进行精确测量，通过两种不同离子阱装置（低温表面电极射频保罗阱和室温永磁彭宁阱）测量，显著降低不确定性，得到一致结果并估计系统偏移远低于统计不确定性。
AI 中文摘要
我们报告了对单个捕获的$^{40}\text{Ca}^+$离子的$3^2D_{5/2}$和$4^2S_{1/2}$态之间的朗德g因子比的精确测量。测量在两种不同的离子阱装置中进行：低温表面电极射频保罗阱和室温永磁彭宁阱。彭宁阱测量得到的比值为$0.599~488~813~3(2)$，与之前的工作相比，不确定性降低了40倍以上。射频阱测量得到的一致值为$0.599~488~813(6)$。我们估计每个系统的系统偏移远低于各自的统计不确定性。
英文摘要
We report precision measurements of the ratio of Landé $g$ factors between the $3^2D_{5/2}$ and $4^2S_{1/2}$ states of a single trapped $^{40}\text{Ca}^+$ ion. The measurements are performed in two distinct ion trap apparatus: a cryogenic surface electrode radiofrequency Paul trap and a room-temperature permanent magnet Penning trap. The Penning trap measurements rely on resonant microwave excitation of magnetic sublevels and yield a ratio of $0.599~488~813~3(2)$, which is a more than 40-fold uncertainty reduction compared to previous work. The radiofrequency trap measurements utilize optical electric quadrupole transitions and yield a concurring value of $0.599~488~813(6)$. We estimate that systematic shifts for each system are well below the respective statistical uncertainty.
Comments6 pages, 3 figures, 1 table
