A preliminary measurement of the fine structure constant based on atom interferometry

被引：227

作者：

Wicht, A ^{[1
]}

Hensley, JM ^{[1
]}

Sarajlic, E ^{[1
]}

Chu, S ^{[1
]}

机构：

[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

来源：

PHYSICA SCRIPTA | 2002年 / T102卷

关键词：

D O I：

10.1238/Physica.Topical.102a00082

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using an atom interferometer method, we measure the recoil velocity of a cesium atom due to the coherent scattering of a photon. This measurement is used to obtain a value of h/M-Cs, and the fine structure constant, alpha. The current fractional uncertainty is Deltaalpha/alpha = 7.4 x 10(-9).

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页码：82 / 88

页数：7

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