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arXiv · 0902.3778

Relativistic coupled-cluster studies of ionization potentials, lifetimes and polarizabilities in singly ionized calcium

B. K. Sahoo·B. P. Das·D. Mukherjee
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Abstract

Using the relativistic coupled-cluster method, we have calculated ionization potentials, E1 matrix elements and dipole polarizabilities of many low-lying states of Ca$^+$. Contributions from the Breit interaction are given explicitly for these properties. Polarizabilities of the ground and the first excited d-states are determined by evaluating the wave functions that are perturbed to first order by the electric dipole operator and the black-body radiation shifts are estimated from these results. We also report the results of branching ratios and lifetimes of the first excited p-states using both the calculated and experimental wavelengths and compare them with their measured values.

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B. K. Sahoo, B. P. Das, D. Mukherjee. 2009-02-22. Relativistic coupled-cluster studies of ionization potentials, lifetimes and polarizabilities in singly ionized calcium. https://doi.org/10.1103/physreva.79.052511

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