Phys. Rev. Lett. 87, 080403 (2001) [4 pages]Quasipure Bose-Einstein Condensate Immersed in a Fermi SeaReceived 13 July 2001; published 7 August 2001 We report the observation of coexisting Bose-Einstein condensate (BEC) and Fermi gas in a magnetic trap. With a very small fraction of thermal atoms, the 7Li condensate is quasipure and in thermal contact with a 6Li Fermi gas. The lowest common temperature is 0.28μK≃0.2(1)TC = 0.2(1)TF where TC is the BEC critical temperature and TF the Fermi temperature. The 7Li condensate has a one-dimensional character. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.87.080403
DOI:
10.1103/PhysRevLett.87.080403
PACS:
05.30.Fk, 03.75.-b, 05.30.Jp, 32.80.Pj
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