Precision spectroscopy in He as a test of QED

被引：12

作者：

Bergeson, SD ^{[1
]}

Balakrishnan, A

Baldwin, KGH

Lucatorto, TB

Marangos, JP

McIlrath, TJ

O'Brian, TR

Rolston, SL

Sansonetti, CJ

Wen, J

Westbrook, N

Cheng, CH

Eyler, EE

机构：

[1] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA

[2] Brigham Young Univ, Dept Phys & Astron, Provo, UT 84602 USA

[3] SDL Inc, San Jose, CA 95134 USA

[4] Australian Natl Univ, Canberra, ACT 0200, Australia

[5] Univ Maryland, Inst Phys Sci & Technol, College Pk, MD 20742 USA

[6] Imperial Coll, London, England

[7] Inst Opt, Orsay, France

[8] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA

来源：

PHYSICA SCRIPTA | 1999年 / T83卷

关键词：

D O I：

10.1238/Physica.Topical.083a00076

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

High-resolution laser-based measurements of energy levels have spurred the development and refinement of quantum electrodynamic calculations. We have extended very-high-resolution laser spectroscopy techniques into the vacuum ultraviolet wavelength region at lambda approximate to 120 nm to determine the Lamb shift in the ground state of He I. The importance of this measurement to high accuracy quantum electrodynamics calculations is discussed. Details of the present measurement and future improvements are presented.

引用

页码：76 / 82

页数：7

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