Observation of Bose-Einstein Condensation of Molecules

Details Observation of Bose-Einstein Condensation of Molecules Observation of Bose-Einstein Condensation of Molecules

2003-11-27

arxiv.org/abs/cond-mat/0311617v2

Phys. Rev. Lett. 91, 250401 (2003)

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.91.250401

We have observed Bose-Einstein condensation of molecules. When a spin mixture of fermionic Li-6 atoms was evaporatively cooled in an optical dipole trap near a Feshbach resonance, the atomic gas was converted into Li_2 molecules. Below 600 nK, a Bose-Einstein condensate of up to 900,000 molecules was identified by the sudden onset of a bimodal density distribution. This condensate realizes the limit of tightly bound fermion pairs in the crossover between BCS superfluidity and Bose-Einstein condensation.

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