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A: Fachverband Atomphysik

A 26: Poster III

A 26.77: Poster

Donnerstag, 17. März 2011, 16:00–18:30, P2

Prospects for photoassociation of ultracold alkali-strontium compounds — Romain Guérout², Mireille Aymar¹, and •Olivier Dulieu¹ — ¹Laboratoire Aimé Cotton, CNRS/Université Paris-Sud, Orsay, France — ²Laboratoire Kastler-Brossel, CNRS/Université Pierre et Marie Curie, Paris, France

In this work, we investigate the previously unknown electronic structure and properties of ionic and neutral diatomic molecules which could be formed from cold Strontium ions or atoms and ultracold alkali atoms A (A=Li, Na, K, Rb, Cs). The ionic (A-Sr⁺) and neutral (A-Sr)species are modeled as effective two- and three-valence electron systems respectively, in the field of polarizable ionic cores Sr⁺ and A⁺ represented by effective core potentials. Potential curves, permanent and transition dipole moments are computed from a standard quantum chemistry approach with Full Configuration Interaction. Possible paths for charge exchange processes and for photoassociation are presented in the perspective of upcoming experiments.