We present measurements of the loss-rate coefficients Kam and Kmm caused by inelastic atom-molecule and molecule-molecule collisions. A thermal cloud of atomic Rb87 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 Kam =2× 10-10 cm3/s. Additionally, the atoms can be removed with blast light. In this case, the measured molecule loss yields Kmm =3× 10-10 cm3/s.
|Number of pages||4|
|Journal||Physical Review A - Atomic, Molecular, and Optical Physics|
|Publication status||Published - 2006|