共线激光荧光光谱法测定169Tm II中15个能级的磁偶极超精细常数
Magnetic Dipole Hyperfine Constants of 15 Energy Levels in $^{169}$Tm II Determined by Collinear Laser Fluorescence Spectroscopy
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中文总结 AI 辅助
该研究采用共线激光荧光光谱法，测定169Tm II中15个能级的磁偶极超精细常数，其中14个精度达亚MHz，部分能级精度提升1-2个数量级，结果可服务于量子计算等领域。
中文摘要 AI 辅助
我们对169Tm+离子的14条谱线的超精细结构、跃迁频率和相对强度进行了测量，这些谱线始于4f¹³(²F⁰₇/₂)6s₁/₂ (7/2, 1/2)₃,₄⁰能级。测定了所有15个相关离子能级的磁偶极超精细（A）常数，其中14个的精度达到亚MHz。有5个能级此前未见测量报道，其余所有能级的测量结果与文献值吻合良好，且精度通常比此前提升1至2个数量级。我们对比了跃迁强度并纳入了改进后的跃迁频率。这些结果对量子计算领域、恒星光谱中Tm⁺丰度的建模，以及CERN的ISOLDE装置开展的短寿命Tm同位素测量计划均具有实用价值。
英文摘要
We present measurements of the hyperfine structure, transition frequencies and relative intensities in 14 lines of 169Tm+ ions starting from the $4f^{13}({}^2\!F^o_{7/2})6s_{1/2} (7/2, 1/2)_{3,4}^o$ levels. The magnetic dipole hyperfine ($A$) constant of all 15 involved ionic levels are determined, 14 of which have sub-MHz accuracy. For five levels no previous measurements were reported, while all others are in excellent agreement with the literature and improve on the previous accuracy by typically 1 - 2 orders of magnitude. We compare transition strengths and include improved transition frequencies. These results are useful for the quantum computing community, modelling of Tm$^+$ abundances in stellar spectra, as well as for an ongoing measurement program on short-lived Tm isotopes at ISOLDE/CERN.
发表机构
- Technische Universität Darmstadt（达姆施塔特工业大学）
- GSI Helmholtzzentrum für Schwerionenforschung（GSI重离子研究中心）
机构由 AI 辅助整理，请以论文原文为准。
