corner
corner

Phys. Rev. A 75, 020702(R) (2007) [4 pages]

Collisional relaxation of Feshbach molecules and three-body recombination in 87Rb Bose-Einstein condensates

Download: PDF (116 kB) Buy this article Export: BibTeX or EndNote (RIS)

G. Smirne1, R. M. Godun1, D. Cassettari1, V. Boyer1, C. J. Foot1, T. Volz2, N. Syassen2, S. Dürr2, G. Rempe2, M. D. Lee1, K. Góral1, and T. Köhler1
1Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom
2Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, 85748 Garching, Germany

Received 6 April 2006; published 20 February 2007

We predict the resonance-enhanced magnetic field dependence of atom-dimer relaxation and three-body recombination rates in a 87Rb Bose-Einstein condensate close to 1007 G. Our exact treatments of three-particle scattering explicitly include the dependence of the interactions on the atomic Zeeman levels. The Feshbach resonance distorts the entire diatomic energy spectrum, causing interferences in both loss phenomena. Our two independent experiments confirm the predicted recombination loss over a range of rate constants that spans four orders of magnitude.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.75.020702
DOI:
10.1103/PhysRevA.75.020702
PACS:
34.50.−s, 03.75.−b, 21.45.+v, 34.10.+x