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Title: Relativistic coupled-cluster studies of ionization potentials, lifetimes, and polarizabilities in singly ionized calcium
Authors: Sahoo, B. K
Das, B. P
Mukherjee, D
Keywords: Calcium;Coupled Cluster Calculations;Excited States;Ground States;Ionisation Potential;Polarisability;Positive Ions;Radiative Lifetimes;Relativistic Corrections;Wave Functions
Issue Date: May-2009
Publisher: The American Physical Society
Citation: Physical Review A, Vol. 79, No. 5, pp. 052511 - 1 - 052511 - 9
Abstract: Using the relativistic coupled-cluster method, we have calculated ionization potentials, electric dipole transition amplitudes, and dipole polarizabilities of many low-lying states of Ca/sub+. 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.
ISSN: 1050-2947
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Appears in Collections:IIAP Publications

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