Conversion of an Atomic Fermi Gas to a Long-Lived Molecular Bose Gas
Abstract
We have converted an ultracold Fermi gas of 6Li atoms into an ultracold gas of 6Li2 molecules by adiabatic passage through a Feshbach resonance. Approximately 1.5 × 105 molecules in the least-bound, v = 38, vibrational level of the X1 +g singlet state are produced with an efficiency of 50%. The molecules remain confined in an optical trap for times of up to 1 s before we dissociate them by a reverse adiabatic sweep.
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