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arXiv · 0809.0061

Ultracold Molecules in the Ro-Vibrational Triplet Ground State

F. Lang·K. Winkler·C. Strauss·R. Grimm·J. Hecker Denschlag
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Abstract

We report here on the production of an ultracold gas of tightly bound Rb2 molecules in the ro-vibrational triplet ground state, close to quantum degeneracy. This is achieved by optically transferring weakly bound Rb2 molecules to the absolute lowest level of the ground triplet potential with a transfer efficiency of about 90%. The transfer takes place in a 3D optical lattice which traps a sizeable fraction of the tightly bound molecules with a lifetime exceeding 200 ms.

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F. Lang, K. Winkler, C. Strauss, R. Grimm, J. Hecker Denschlag. 2008-09-19. Ultracold Molecules in the Ro-Vibrational Triplet Ground State. https://doi.org/10.1103/physrevlett.101.133005

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