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Relativistic Many-Body Calculations of Electric-Dipole Matrix Elements, Lifetimes and Polarizabilities in Rubidium

Published

Author(s)

M S. Safronova, Carl J. Williams, Charles W. Clark

Abstract

Electric-dipole matrix elements for ns-n'p, nd-n'p, and 6d-4f transitions in Rb are calculated using a relativistic all-order method. A third-order calculation is also carried out for these matrix elements to evaluate the importance of the high-order many-body perturbation theory contributions. The all-order matrix elements are used to evaluate lifetimes of ns and np levels with n=6, 6, 8 and nd levels with n = 4, 5, 6 for comparison with experiment and to provide benchmard values for these lifetimes. The static and dynamic polarizabilities are calculated for ns states of rubidium. The resulting lifetime and polarizability values are compared with available theory and experiment.
Citation
Physical Review A (Atomic, Molecular and Optical Physics)
Volume
69
Issue
No. 2

Keywords

electric-dipole, excited states, lifetimes, matrix elements, oscillator strengths, perturbation theory, polarizabilities, relativistic all-order method, rubidium

Citation

Safronova, M. , Williams, C. and Clark, C. (2004), Relativistic Many-Body Calculations of Electric-Dipole Matrix Elements, Lifetimes and Polarizabilities in Rubidium, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed April 21, 2024)
Created February 1, 2004, Updated February 17, 2017