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arXiv · 0709.0130

Magic wavelengths for the np-ns transitions in alkali-metal atoms

Bindiya Arora·M. S. Safronova·Charles W. Clark
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Abstract

Extensive calculations of the electric-dipole matrix elements in alkali-metal atoms are conducted using the relativistic all-order method. This approach is a linearized version of the coupled-cluster method, which sums infinite sets of many-body perturbation theory terms. All allowed transitions between the lowest ns, np_1/2, np_3/2 states and a large number of excited states are considered in these calculations and their accuracy is evaluated. The resulting electric-dipole matrix elements are used for the high-precision calculation of frequency-dependent polarizabilities of the excited states of alkali-metal atoms. We find magic wavelengths in alkali-metal atoms for which the ns and np_1/2 and np_3/2 atomic levels have the same ac Stark shifts, which facilitates state-insensitive optical cooling and trapping.

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Bindiya Arora, M. S. Safronova, Charles W. Clark. 2007-09-02. Magic wavelengths for the np-ns transitions in alkali-metal atoms. https://doi.org/10.1103/physreva.76.052509

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