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Production of optically trapped 87RbCs Feshbach molecules

Köppinger, 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.

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Authors

M.P. Köppinger

D.J. McCarron

D.L. Jenkin

P.K. Molony

H.W. Cho

C.R. Le Sueur

C.L. Blackley



Abstract

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.

Citation

Köppinger, M., McCarron, D., Jenkin, D., Molony, P., Cho, H., Cornish, S., …Hutson, J. (2014). Production of optically trapped 87RbCs Feshbach molecules. Physical Review A, 89(3), Article 033604. https://doi.org/10.1103/physreva.89.033604

Journal Article Type Article
Acceptance Date Dec 12, 2013
Online Publication Date Mar 5, 2014
Publication Date Mar 5, 2014
Deposit Date Mar 20, 2014
Publicly Available Date Mar 25, 2014
Journal Physical review. A.
Print ISSN 1050-2947
Electronic ISSN 1094-1622
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 89
Issue 3
Article Number 033604
DOI https://doi.org/10.1103/physreva.89.033604

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Copyright Statement
© 2014 American Physical Society





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