Hole transitions in multiply-charged ions for precision laser spectroscopy and searching for alpha-variation
Atomic Physics
2011-07-21 v1
Abstract
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 new 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 due to large relativistic corrections, and propose candidate transitions that have much larger alpha-sensitivities than any previously seen in atomic systems.
Keywords
Cite
@article{arxiv.1103.2823,
title = {Hole transitions in multiply-charged ions for precision laser spectroscopy and searching for alpha-variation},
author = {J. C. Berengut and V. A. Dzuba and V. V. Flambaum and A. Ong},
journal= {arXiv preprint arXiv:1103.2823},
year = {2011}
}