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A quasi-pure Bose-Einstein condensate immersed in a Fermi sea

F. Schreck·L. Khaykovich·K. L. Corwin·G. Ferrari·T. Bourdel·J. Cubizolles·C. Salomon
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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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F. Schreck, L. Khaykovich, K. L. Corwin, G. Ferrari, T. Bourdel, J. Cubizolles, C. Salomon. 2001-07-20. A quasi-pure Bose-Einstein condensate immersed in a Fermi sea. https://doi.org/10.1103/physrevlett.87.080403

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