Collisional decay of 87Rb Feshbach molecules at 1005.8 G
arXiv:cond-mat/0611047 · doi:10.1103/PhysRevA.74.062706
Abstract
We present measurements of the loss-rate coefficients K_am and K_mm caused by inelastic atom-molecule and molecule-molecule collisions. A thermal cloud of atomic 87Rb is prepared in an optical dipole trap. A magnetic field is ramped across the Feshbach resonance at 1007.4 G. This associates atom pairs to molecules. A measurement of the molecule loss at 1005.8 G yields K_am=2 10^-10 cm^3/s. Additionally, the atoms can be removed with blast light. In this case, the measured molecule loss yields K_mm=3 10^-10 cm^3/s.
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- Lieb-Liniger model of a dissipation-induced Tonks-Girardeau gas
- Excited Thomas-Efimov levels in ultracold gases
- Collisions between tunable halo dimers: exploring an elementary four-body process with identical bosons
- Formation of molecular oxygen in ultracold O + OH reaction
- Spatial pair correlations of atoms in molecular dissociation
- Collisional relaxation of Feshbach molecules and three-body recombination in 87Rb Bose-Einstein condensates