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arXiv 0907.0368physics.atom-ph
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Mg ~+离子3s-3 p精细结构双峰的精密光谱

Precision spectroscopy of the 3s-3p fine structure doublet in Mg+

V. Batteiger, S. Knünz, M. Herrmann, G. Saathoff, H. A. Schüssler, B. Bernhardt, T. Wilken, R. Holzwarth, T. W. Hänsch, Th. Udem

摘要:

我们应用最近证明的方法,在捕获离子的强跃迁的精密光谱测量24-Mg+和26-Mg+的3s-3 p跃迁的精细结构组件。我们推导出绝对频率参考数据的过渡频率,同位素位移和精细结构分裂,特别是有用的类星体的吸收光谱,测试可能的时空变化的精细结构常数的比较。测量精度提高了以前的文献值,当存在时,超过两个数量级。

英文摘要:

We apply a recently demonstrated method for precision spectroscopy on strong transitions in trapped ions to measure both fine structure components of the 3s-3p transition in 24-Mg+ and 26-Mg+. We deduce absolute frequency reference data for transition frequencies, isotope shifts and fine structure splittings that are in particular useful for comparison with quasar absorption spectra, which test possible space-time variations of the fine structure constant. The measurement accuracy improves previous literature values, when existing, by more than two orders of magnitude.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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