Physics – Atomic Physics
Scientific paper
2011-03-15
Phys.Rev.Lett.106:210802,2011
Physics
Atomic Physics
Scientific paper
10.1103/PhysRevLett.106.210802
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.
Berengut Julian C.
Dzuba V. A.
Flambaum Victor V.
Ong Andrew
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