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Formation of Quantum-Degenerate Sodium Molecules

K. Xu·T. Mukaiyama·J. R. Abo-Shaeer·J. K. Chin·D. E. Miller·W. Ketterle
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Abstract

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.

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K. Xu, T. Mukaiyama, J. R. Abo-Shaeer, J. K. Chin, D. E. Miller, W. Ketterle. 2003-12-22. Formation of Quantum-Degenerate Sodium Molecules. https://doi.org/10.1103/physrevlett.91.210402

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