Quasipure Bose-Einstein condensate immersed in a Fermi sea

Quasipure Bose-Einstein condensate immersed in a Fermi sea

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 0.28 microK approximately 0.2(1)T(C) = 0...

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Veröffentlicht in:Physical review letters 2001-08, Vol.87 (8), p.080403-080403, Article 080403
Hauptverfasser: Schreck, F, Khaykovich, L, Corwin, K L, Ferrari, G, Bourdel, T, Cubizolles, J, Salomon, C
Format: Artikel
Sprache:eng
Schlagworte:
ATOMS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
CONDENSATES
Condensed Matter
CRITICAL TEMPERATURE
FERMI GAS
Physics
SEAS
Statistical Mechanics
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Zusammenfassung: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 0.28 microK approximately 0.2(1)T(C) = 0.2(1)T(F) where T(C) is the BEC critical temperature and T(F) the Fermi temperature. The 7Li condensate has a one-dimensional character.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.87.080403