title: Reaching fermi degeneracy in two-species optical dipole traps.
abstract: We propose the use of a combined optical dipole trap to achieve Fermi degeneracy by sympathetic cooling with a different bosonic species. Two far-detuned pairs of laser beams focused on the atomic clouds are used to confine the two atomic species with different trapping strengths. We show that a deep Fermi degeneracy regime can be potentially achieved earlier than Bose-Einstein condensation, as discussed in the favorable situation of a 6Li-23Na mixture. This opens up the possibility of experimentally investigating a mixture of superfluid Fermi and normal Bose gases.
authors.affiliation: Dipartimento di Fisica G. Galilei, Università di Padova, Via Marzolo 8, Italy.
authors.forename: Roberto
authors.initials: R
authors.lastname: Onofrio
authors.forename: Carlo
authors.initials: C
authors.lastname: Presilla