Ramsey Spectroscopy of the 2S1/2 Hyperfine Interval in Atomic Hydrogen
Ramsey Spectroscopy of the 2S1/2 Hyperfine Interval in Atomic Hydrogen
复制标题
原子氢中 2S1/2 超精细区间的 Ramsey 能谱
DOI：
10.1103/physrevlett.130.203001
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发表时间：
2023
影响因子：
8.6
通讯作者：
Yost, D. C.
中科院分区：
文献类型：
--
作者：
Bullis, R. G.;Rasor, C.;Tavis, W. L.;Johnson, S. A.;Weiss, M. R.;Yost, D. C.
用热束冷却到低温的Ramsey光谱法测量了氢原子的超精细间隔。测量值为177 556 838.87（85）Hz，这是迄今为止对该间隔的最精确测定。超精细区间和超精细区间可以结合起来给出量子数，基本上消除了由于核结构效应引起的不确定性，并且可以用束缚态量子电动力学很好地描述。利用本工作的值，给出了一个值，这与理论值一致。
Thehyperfine interval in atomic hydrogen was measured using Ramsey spectroscopy with a thermal beam cooled to cryogenic temperatures. The measured value is 177 556 838.87(85) Hz, which represents the most precise determination of this interval to date. Thehyperfine intervaland thehyperfine intervalcan be combined to give the quantity, which mostly eliminates uncertainty due to nuclear structure effects and is well described by bound-state quantum electrodynamics. Using the value offrom this work gives a value of, which is in agreement with the theoretical value of.