Abstract
The Bose-Einstein condensation (BEC) of weakly bound 6LI 2 molecules in crossed optical near a Feshbach resonance was discussed. The molecular BEC made in single beam dipole trap with very elongated geometries. The molecule-molecule scattering length A m = 170 +100 -60 nm at magnetic field was measured for analyzing free expansions of pure condensates with up to 4 X 10 4 molecules. The hydrodynamic expansions at and above resonance were also observed.
Original language | English |
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Article number | 050401 |
Pages (from-to) | 050401-1-050401-4 |
Journal | Physical Review Letters |
Volume | 93 |
Issue number | 5 |
DOIs | |
State | Published - 30 Jul 2004 |
Externally published | Yes |
Bibliographical note
Funding Information:We are grateful to Y. Castin, C. Cohen-Tannoudji, ?>R. Combescot, J. Dalibard, G. Shlyapnikov, and ?>S. Stringari for fruitful discussions. This work was supported by CNRS, Collège de France, and Région Ile de France. S. Kokkelmans acknowledges a Marie Curie grant from the E.U. under Contract No. MCFI-2002-00968. Laboratoire Kastler-Brossel is Unité de recherche de l’Ecole Normale Supérieure et de l’Université Pierre et Marie Curie, associée au CNRS.
Funding
We are grateful to Y. Castin, C. Cohen-Tannoudji, ?>R. Combescot, J. Dalibard, G. Shlyapnikov, and ?>S. Stringari for fruitful discussions. This work was supported by CNRS, Collège de France, and Région Ile de France. S. Kokkelmans acknowledges a Marie Curie grant from the E.U. under Contract No. MCFI-2002-00968. Laboratoire Kastler-Brossel is Unité de recherche de l’Ecole Normale Supérieure et de l’Université Pierre et Marie Curie, associée au CNRS.
Funders | Funder number |
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Collège de France | |
Région Ile de France | |
European Commission | MCFI-2002-00968 |
Centre National de la Recherche Scientifique |