| Issue |
Europhys. Lett.
Volume 69, Number 5, March 2005
|
|
|---|---|---|
| Page(s) | 706 - 712 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i2004-10427-7 | |
| Published online | 02 February 2005 | |
Efficient creation of molecules from a cesium Bose-Einstein condensate
1
Institut für Experimentalphysik, Universität Innsbruck Technikerstraße 25, 6020 Innsbruck, Austria
2
Institut für Quantenoptik und Quanteninformation Österreichische Akademie der Wissenschaften - 6020 Innsbruck, Austria
Received:
29
September
2004
Accepted:
12
January
2005
We report a new scheme to create weakly bound 
molecules from an atomic Bose-Einstein condensate. The method is
based on switching the magnetic field to a narrow Feshbach
resonance and yields a high atom-molecule conversion efficiency
of more than 30%, a factor of three higher than obtained with
conventional magnetic-field ramps. The molecules are
created in a single g-wave rotational quantum state. The
observed dependence of the conversion efficiency on the magnetic
field and atom density shows scattering processes beyond two-body
coupling to occur in the vicinity of the Feshbach resonance.
PACS: 03.75.-b – Matter waves / 34.50.-s – Scattering of atoms and molecules / 32.80.Pj – Optical cooling of atoms; trapping
© EDP Sciences, 2005
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