Session D1: Poster Session I (4:00 pm - 6:00 pm)
4:00 PM–4:00 PM, Tuesday, June 5, 2012
Room: Royal Ballroom
Abstract ID: BAPS.2012.DAMOP.D1.131
Abstract: D1.00131 : Magic wavelengths and other properties of Li for optical cooling and trapping
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Abstract 
Authors:
Marianna Safronova
(University of Delaware)
Ulyana Safronova
(University of Nevada, Reno)
Charles W. Clark
(JQI, NIST and the University of Maryland)
Using first-principles calculations, we identify magic wavelengths $\lambda$ for the $2s-2p_{1/2}$, $2s-2p_{3/2}$, $2s-3p_{1/2}$, and $2s-2p_{3/2}$ transitions in Li. The $ns$ and $np_j$ atomic levels have the same ac Stark shifts at the corresponding magic wavelength, which facilitates state-insensitive optical cooling and trapping. Possible differences between the positions of magic wavelengths in $^6$Li and $^7$Li are investigated. Our approach uses high-precision, relativistic all-order method in which all single, double, and partial triple excitations of the Dirac-Fock wave functions are included to all orders of perturbation theory. Recommended values are provided for a large number of Li electric-dipole matrix elements. Trends of dynamic polarizabilities of the ground and $2p_j$, $3s$, and $3p_j$ states are investigated. Uncertainties of all recommended values are estimated. Implications of our results for optical cooling and trapping of Li are discussed.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2012.DAMOP.D1.131