The anomalous magnetic moment of the electron in hydrogenlike ions
The anomalous magnetic moment of the electron in hydrogenlike ions
复制标题
类氢离子中电子的反常磁矩
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
G. Werth
中科院分区：
文献类型：
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作者：
M. Vogel;J. Alonso;K. Blaum;W. Quint;B. Schabinger;S. Sturm;J. Verdú;A. Wagner;G. Werth
类氢离子中束缚电子的反常磁矩的精确测定使得在强电场存在下对量子电动力学（QED）进行严格的测试成为可能。g-因子测量的电子束缚在类氢离子12 C5+和16 O 7+，使用单离子限制在一个潘宁陷阱，产生的值与理论上的ppb级。如果QED计算被认为是正确的，结果可以反过来用于确定基本常数，如电子质量me，精细结构常数α或核参数。我们报告目前的发展对g因子测量也在中重和重高电荷离子。
The precise determination of the anomalous magnetic moment of the electron bound in hydrogen-like ions allows for a stringent test of quantum electrodynamics (QED)in the presence of strong electric fields. g-factor measurements on the electron bound in hydrogen-like ions 12C5+ and 16O7+, using single ions confined in a Penning trap, have yielded values in agreement with theory on the ppb level. If the QED calculations are considered correct, the results can in turn be used for a determination of fundamental constants like the electron mass me, the fine structure constant α or nuclear parameters. We report about presentdevelopments towards g-factor measurements also in medium-heavy and heavy highly-charged ions.