Creation of ultracold Sr(2) molecules in the electronic ground state.

  title={Creation of ultracold Sr(2) molecules in the electronic ground state.},
  author={Simon Stellmer and Benjamin Pasquiou and R. Grimm and Florian Schreck},
  journal={Physical review letters},
  volume={109 11},
We report on the creation of ultracold (84)Sr(2) molecules in the electronic ground state. The molecules are formed from atom pairs on sites of an optical lattice using stimulated Raman adiabatic passage (STIRAP). We achieve a transfer efficiency of 30% and obtain 4×10(4) molecules with full control over the external and internal quantum state. STIRAP is performed near the narrow (1)S(0)-(3)P(1) intercombination transition, using a vibrational level of the 1(0(u)(+)) potential as an… 

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