Electron-Hole Transitions in Multiply Charged Ions for Precision Laser Spectroscopy and Searching for Variations in α

被引：99

作者：

Berengut, J. C. ^{[1
]}

Dzuba, V. A. ^{[1
]}

Flambaum, V. V. ^{[1
]}

Ong, A. ^{[1
]}

机构：

[1] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 21期

基金：

澳大利亚研究理事会;

关键词：

SPACE-TIME VARIATION; CONSTANTS; SPECTRUM; ATOMS;

D O I：

10.1103/PhysRevLett.106.210802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider transitions of electron holes (vacancies in otherwise filled shells of atomic systems) in multiply charged ions that, due to level crossing of the holes, have frequencies within the range of optical atomic clocks. Strong E1 transitions provide options for laser cooling and trapping, while narrow transitions can be used for high-precision spectroscopy and tests of fundamental physics. We show that hole transitions can have extremely high sensitivity to alpha variation and propose candidate transitions that have much larger alpha sensitivities than any previously seen in atomic systems.

引用

页数：4

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