Fiftyfold improvement in the number of quantum degenerate fermionic atoms.

Authors :: Hadzibabic Z
Gupta S
Stan CA
Schunck CH
Zwierlein MW
Dieckmann K
Ketterle W
Source :: Physical review letters [Phys Rev Lett] 2003 Oct 17; Vol. 91 (16), pp. 160401. Date of Electronic Publication: 2003 Oct 16.
Publication Year :: 2003
Abstract: We have produced a quantum degenerate 6Li Fermi gas with up to 7 x 10(7) atoms, an improvement by a factor of 50 over all previous experiments with degenerate Fermi gases. This was achieved by sympathetic cooling with bosonic 23Na in the F=2, upper hyperfine ground state. We have also achieved Bose-Einstein condensation of F=2 sodium atoms by direct evaporation.