2014/09/30 by Michał Tomza, Christiane P. Koch, Robert Moszyński +1 · 3 citations
Physics and Astronomy · #Advanced Frequency and Time Standards #Algorithm #Atomic and Molecular Physics #Cold Atom Physics and Bose-Einstein Condensates #Computer science #cond-mat.quant-gas #physics.atom-ph #physics.chem-ph
paper · pdf · doi:10.1103/physreva.91.042706
published as Phys. Rev. A 91, 042706 (2015) · 13 pages, 13 figures, 2 tables
openalex publication_date 2015/04/17 · arxiv created 2015/04/20 · arxiv updated 2015/04/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The electronic structure of the (LiYb)+ molecular ion is investigated with two variants of the coupled cluster method restricted to single, double, and noniterative or linear triple excitations. Potential-energy curves for the ground and excited states, permanent and transition electric dipole moments, and long-range interaction coefficients C4 and C6 are reported. The data are subsequently employed in scattering calculations and photoassociation studies. Feshbach resonances are shown to be measurable, despite the ion's micromotion in the Paul trap. Molecular ions can be formed in their singlet electronic ground state by one-photon photoassociation and in triplet states by two-photon photoassociation; and control of cold atom-ion chemistry based on Feshbach resonances should be feasible. Conditions for sympathetic cooling of an Yb+ ion by an ultracold gas of Li atoms are found to be favorable in the temperature range 10\phantom\rule0.28em0exnK--10\phantom\rule0.28em0exmK, and further improvements using Feshbach resonances should be possible. Overall, these results suggest excellent prospects for building a quantum simulator with ultracold Yb+ ions and Li atoms.