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arXiv physics/0502113physics.atom-ph
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囚禁Ba $^+$离子光位移的精密测量

Precision measurement of light shifts in a single trapped Ba$^+$ ion

J. A. Sherman, T. W. Koerber, A. Markhotok, W. Nagourney, E. N. Fortson

摘要:

利用一个单一的被困钡离子,我们已经开发了一种射频光谱技术,以测量的比例的非共振矢量交流斯塔克效应(或光移)在6 S_{1/2}和5 D_{3/2}状态,以0.1%的精度。我们发现在514.531 nm处R = Delta_S / Delta_D = -11.494(13),其中Delta_{S,D}是由于圆偏振光引起的m = +/- 1/2分裂的光位移。将这个结果与R的从头计算进行比较,将产生对原子理论的新检验。通过适当地选择非共振光偏移波长,可以强调一个或几个偶极矩阵元素的贡献,并精确地确定它们的值。

英文摘要:

Using a single trapped barium ion we have developed an rf spectroscopy technique to measure the ratio of the off-resonant vector ac Stark effect (or light shift) in the 6S_{1/2} and 5D_{3/2} states to 0.1% precision. We find R = Delta_S / Delta_D = -11.494(13) at 514.531 nm where Delta_{S,D} are the light shifts of the m = +/- 1/2 splittings due to circularly polarized light. Comparison of this result with an ab initio calculation of R would yield a new test of atomic theory. By appropriately choosing an off-resonant light shift wavelength one can emphasize the contribution of one or a few dipole matrix elements and precisely determine their values.

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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