SIGNIFICANT EVENTS - SCIENCE EVENTS
11/22/02

Ketterle Group Publishes

The paper "Two species mixture of quantum degenerate Bose and Fermi gases" by Z. Hadzibabic, C.A. Stan, K. Dieckmann, S. Gupta, M.W. Zwierlein, A. Göerlitz, and W. Ketterle has been published in Physical Review Letters (Phys. Rev. Lett. 88, 160401(2002)). The authors report production of a macroscopic quantum system in which a ⁶Li Fermi sea coexists with a large and stable ²³Na Bose-Einstein condensate. They used interspecies sympathetic cooling of fermionic ⁶Li in a thermal bath of bosonic ²³Na. The system features rapid thermalization and long lifetimes. This new system provides the Ketterle group with a starting point for studies of the degenerate Bose-Fermi mixtures.