Conversion of an Atomic Fermi Gas to a Long-Lived Molecular Bose Gas
Strecker, Kevin E.
Partridge, Guthrie B.
Hulet, Randall G.
We have converted an ultracold Fermi gas of Li6 atoms into an ultracold gas of Li26 molecules by adiabatic passage through a Feshbach resonance. Approximately 1.5×105 molecules in the least-bound, v=38, vibrational level of the X1Σ+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.