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Crossover from a molecular Bose-Einstein condensate to a degenerate Fermi gas | M. Bartenstein
; A. Altmeyer
; S. Riedl
; S. Jochim
; C. Chin
; J. Hecker Denschlag
; R. Grimm
; | Date: |
8 Dec 2003 | Journal: | Physical Review Letter 92, 120401 (2004) DOI: 10.1103/PhysRevLett.92.120401 | Subject: | Other | cond-mat.other | Abstract: | We demonstrate a reversible conversion of a Li2 molecular Bose-Einstein condensate to a degenerate Fermi gas of atoms by adiabatically crossing a Feshbach resonance. By optical in situ imaging, we observe a smooth change of the cloud size in the crossover regime. On the Feshbach resonance, the ensemble is strongly interacting and the measured cloud size is 75(7)% of the one of a non-interacting zero-temperature Fermi gas. The high condensate fraction of more than 90% and the adiabatic crossover suggest our Fermi gas to be cold enough to form a superfluid. | Source: | arXiv, cond-mat/0401109 | Other source: | [GID 272768] pmid15089653 | Services: | Forum | Review | PDF | Favorites |
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