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Polarizabilities of the Mg+ and Si3+ ions

Mitroy, Jim and Safronova, Marianna S. (2009). Polarizabilities of the Mg+ and Si3+ ions. Physical Review A (Atomic, Molecular and Optical Physics),79(1):012513-1-012513-13.

Document type: Journal Article
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IRMA ID 80791673xPUB52
Title Polarizabilities of the Mg+ and Si3+ ions
Author Mitroy, Jim
Safronova, Marianna S.
Journal Name Physical Review A (Atomic, Molecular and Optical Physics)
Publication Date 2009
Volume Number 79
Issue Number 1
ISSN 1094-1622   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-59949104220
Start Page 012513-1
End Page 012513-13
Total Pages 13
Place of Publication College Park, United States
Publisher American Physical Society
HERDC Category C1 - Journal Article (DEST)
Abstract A polarization analysis of the fine-structure intervals for the n=17 Rydberg states of Mg and the n=29 states of Si2+ is performed. The coefficients of all terms in the polarization expansion up to r‑8 were computed using a semiempirical single electron analysis combined with the relativistic all-order single-double method (MBPT-SD) which includes all single-double excitations from the Dirac-Fock wave functions to all orders of perturbation theory. The revised analysis yields dipole polarizabilities of α1=35.04(3)a.u. for Mg+ and α1=7.433(25)a.u. for Si3+ , values only marginally larger than those obtained in a previous analysis [E. L. Snow and S. R. Lundeen, Phys. Rev. A 75, 062512 (2007); E. L. Snow and S. R. Lundeen, Phys. Rev. A77, 052501 (2008)]. The polarizabilities are used to make estimates of the multiplet strength for the resonant transition for both ions. The revised analysis did see significant changes in the slopes of the polarization plots. The dipole polarizabilities from the MBPT-SD calculation, namely 35.05(12)a.u. and 7.419(16)a.u. , are within 0.3% of the revised experimental values.
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Additional Notes Copyright by the American Physical Society

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