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Experimental study of the BEC-BCS crossover region in lithium 6
Journal article   Peer reviewed

Experimental study of the BEC-BCS crossover region in lithium 6

T Bourdel, L Khaykovich, J Cubizolles, J Zhang, F Chevy, M Teichmann, L Tarruell, SJJMF Kokkelmans, C Salomon and Matthew B Hastings
Physical review letters, Vol.93(5), pp.050401-1/4
07/30/2004
DOI: https://doi.org/10.1103/PhysRevLett.93.050401
PMID: 15323676

Abstract and subjects

Physical Sciences Physics Physics, Multidisciplinary Science & Technology
We report Bose-Einstein condensation of weakly bound Li-6(2) molecules in a crossed optical trap near a Feshbach resonance. We measure a molecule-molecule scattering length of 170(-60)(+100) nm at 770 G, in good agreement with theory. We study the 2D expansion of the cloud and show deviation from hydrodynamic behavior in the BEC-BCS crossover region.

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