Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2003-10-01
Phys. Rev. Lett. 91, 210402 (2003)
Physics
Condensed Matter
Statistical Mechanics
5 pages, 4 figures (final published version)
Scientific paper
10.1103/PhysRevLett.91.210402
Ultra-cold sodium molecules were produced from an atomic Bose-Einstein condensate by ramping an applied magnetic field across a Feshbach resonance. More than $10^5$ molecules were generated with a conversion efficiency of $\sim$4%. Using laser light resonant with an atomic transition, the remaining atoms could be selectively removed, preventing fast collisional relaxation of the molecules. Time-of-flight analysis of the pure molecular sample yielded an instantaneous phase-space density greater than 20.
Abo-Shaeer J. R.
Chin J. K.
Ketterle Wolfgang
Miller Eric D.
Mukaiyama Takashi
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