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26 April 2024 |
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Heteronuclear molecules in an optical dipole trap | J. J. Zirbel
; K.-K. Ni
; S. Ospelkaus
; T. L. Nicholson
; M. L. Olsen
; C. E. Wieman
; J. Ye
; D. S. Jin
; P. S. Julienne
; | Date: |
23 Dec 2007 | Abstract: | We report on the creation and characterization of heteronuclear KRb Feshbach
molecules in an optical dipole trap. Starting from an ultracold gas mixture of
K-40 and Rb-87 atoms, we create as many as 25,000 molecules at 300 nK by rf
association. Optimizing the association process, we achieve a conversion
efficiency of 25%. We measure the temperature dependence of the rf association
process and find good agreement with a phenomenological model that has
previously been applied to Feshbach molecule creation by slow magnetic-field
sweeps. We also present a measurement of the binding energy of the
heteronuclear molecules in the vicinity of the Feshbach resonance and provide
evidence for Feshbach molecules as deeply bound as 26 MHz. | Source: | arXiv, 0712.3889 | Services: | Forum | Review | PDF | Favorites |
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