Pr10+ 作为用于基础物理学测试的高精度光学时钟的候选者

S. G. Porsev, C. Cheung, M. S. Safronova, H. Bekker, N. -H. Rehbehn, J. R. Crespo Lopez-Urrutia, S. M. Brewer
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引用次数: 0

摘要

我们提出了类In Pr10+作为开发高精度光学时钟的候选物质,它对细观结构常数(\dot alpha}/α)的时间变化具有高灵敏度,并且具有良好的实验系统学特性。我们结合配置相互作用和耦合簇方法计算了它的低洼能级,实现了低至 0.1% 的不确定性,并改进了以前的工作。我们将 Pr10+ 中 (5s^2 5p 2P_1/2) - (5s^2 5p2P_3/2) 转变的计算结果分别与专门的测量结果和 Pr9+ 的计算结果与新近的实验结果进行了比较,从而为上述结果提供了基准。此外,我们还报告了 Pr10+ 中时钟态和逻辑态的超精细结构常数的计算结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Pr10+ as a candidate for a high-accuracy optical clock for tests of fundamental physics
We propose In-like Pr10+ as a candidate for the development of a high-accuracy optical clock with high sensitivity to a time variation of the fine-structure constant, (\dot alpha}/alpha, as well as favorable experimental systematics. We calculate its low-lying energy levels by combining the configuration interaction and the coupled cluster method, achieving uncertainties as low as 0.1%, and improving previous work. We benchmark these results by comparing our calculations for the (5s^2 5p 2P_1/2) - (5s^2 5p 2P_3/2) transition in Pr10+ with a dedicated measurement and for Pr9+ with a recent experiment, respectively. In addition, we report calculated hyperfine-structure constants for the clock and logic states in Pr10+.
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