Publication details for Prof Simon CornishKöppinger, M.P., McCarron, D.J., Jenkin, D.L., Molony, P.K., Cho, H.W., Cornish, S.L., Le Sueur, C.R., Blackley, C.L. & Hutson, J.M. (2014). Production of optically trapped 87RbCs Feshbach molecules. Physical Review A: atomic, molecular and optical physics 89(3): 033604.
- Publication type: Journal Article
- ISSN/ISBN: 1050-2947 (print), 1094-1622 (electronic)
- DOI: 10.1103/PhysRevA.89.033604
- Further publication details on publisher web site
- Durham Research Online (DRO) - may include full text
Author(s) from Durham
We report the production of Feshbach molecules in a crossed-beam dipole trap. A mixture of and is cooled close to quantum degeneracy before an interspecies Feshbach resonance at 197 G is used to associate up to molecules with a temperature of nK. The molecules are confined in the dipole trap with a lifetime of 0.21(1) s, long enough for future experiments exploring optical transfer to the absolute ground state. We have measured the magnetic moment of the Feshbach molecules in a magnetic bias field range between 181 and 185 G to demonstrate the ability to control the character of the molecular state. In addition, we have performed Feshbach spectroscopy in a field range from 0 to 1200 G and located three previously unobserved resonances at high magnetic fields.