title: Two-species mixture of quantum degenerate Bose and Fermi gases.
abstract: We have produced a macroscopic quantum system in which a 6Li Fermi sea coexists with a large and stable 23Na Bose-Einstein condensate. This was accomplished using interspecies sympathetic cooling of fermionic 6Li in a thermal bath of bosonic 23Na. The system features rapid thermalization and long lifetimes.
authors.affiliation: Department of Physics, MIT-Harvard Center for Ultracold Atoms, MIT, Cambridge, Massachusetts 02139, USA.
authors.forename: Z
authors.initials: Z
authors.lastname: Hadzibabic
authors.forename: C A
authors.initials: CA
authors.lastname: Stan
authors.forename: K
authors.initials: K
authors.lastname: Dieckmann
authors.forename: S
authors.initials: S
authors.lastname: Gupta
authors.forename: M W
authors.initials: MW
authors.lastname: Zwierlein
authors.forename: A
authors.initials: A
authors.lastname: Görlitz
authors.forename: W
authors.initials: W
authors.lastname: Ketterle