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Quasipure Bose-Einstein Condensate Immersed in a Fermi Sea

Abstract : We report the observation of co-existing Bose-Einstein condensate and Fermi gas in a magnetic trap. With a very small fraction of thermal atoms, the 7Li condensate is quasi-pure and in thermal contact with a 6Li Fermi gas. The lowest common temperature is 0.28 muK = 0.2(1) T_C = 0.2(1) T_F where T_C is the BEC critical temperature and T_F the Fermi temperature. Behaving as an ideal gas in the radial trap dimension, the condensate is one-dimensional.
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Submitted on : Wednesday, May 26, 2004 - 4:24:23 PM
Last modification on : Thursday, March 17, 2022 - 10:08:04 AM

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F. Schreck, Lev Khaykovich, K. Corwin, G. Ferrari, Thomas Bourdel, et al.. Quasipure Bose-Einstein Condensate Immersed in a Fermi Sea. Physical Review Letters, American Physical Society, 2001, 87, pp.080403. ⟨hal-00001627⟩



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