Electron-correlation effects in the g factor of light Li-like ions

Electron-correlation effects in the g factor of light Li-like ions We investigate electron-correlation effects in the g factor of the ground state of Li-like ions. Our calculations are performed within the nonrelativistic quantum electrodynamics (NRQED) expansion up to two leading orders in the fine-structure constant α, α2, and α3. The dependence of the NRQED results on the nuclear charge number Z is studied and the individual 1/Z-expansion contributions are identified. Combining the obtained data with the results of the all-order (in Zα) calculations performed within the 1/Z expansion, we derive unified theoretical predictions for the g factor of light Li-like ions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review A American Physical Society (APS)

Electron-correlation effects in the g factor of light Li-like ions

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Electron-correlation effects in the g factor of light Li-like ions

Abstract

We investigate electron-correlation effects in the g factor of the ground state of Li-like ions. Our calculations are performed within the nonrelativistic quantum electrodynamics (NRQED) expansion up to two leading orders in the fine-structure constant α, α2, and α3. The dependence of the NRQED results on the nuclear charge number Z is studied and the individual 1/Z-expansion contributions are identified. Combining the obtained data with the results of the all-order (in Zα) calculations performed within the 1/Z expansion, we derive unified theoretical predictions for the g factor of light Li-like ions.
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Publisher
The American Physical Society
Copyright
Copyright © ©2017 American Physical Society
ISSN
1050-2947
eISSN
1094-1622
D.O.I.
10.1103/PhysRevA.95.062511
Publisher site
See Article on Publisher Site

Abstract

We investigate electron-correlation effects in the g factor of the ground state of Li-like ions. Our calculations are performed within the nonrelativistic quantum electrodynamics (NRQED) expansion up to two leading orders in the fine-structure constant α, α2, and α3. The dependence of the NRQED results on the nuclear charge number Z is studied and the individual 1/Z-expansion contributions are identified. Combining the obtained data with the results of the all-order (in Zα) calculations performed within the 1/Z expansion, we derive unified theoretical predictions for the g factor of light Li-like ions.

Journal

Physical Review AAmerican Physical Society (APS)

Published: Jun 27, 2017

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