Comparative studies of dipole polarizabilities in Sr$^+$, Ba$^+$ and Ra$^+$ and their applications to optical clocks

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Sahoo, B. K.
Timmermans, R. G. E.
Das, B. P.
Mukherjee, D.
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Abstract
Description
Static dipole polarizabilities are calculated in the ground and metastable states of Sr$^+$, Ba$^+$ and Ra$^+$ using the relativistic coupled-cluster method. Trends of the electron correlation effects are investigated in these atomic ions. We also estimate the Stark and black-body radiation shifts from these results for these systems for the transitions proposed for the optical frequency standards and compare them with available experimental data.
Comment: 10 pages, 1 figure
Keywords
Physics - Atomic Physics, Physics - Optics
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