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arXiv · 0704.0653

`Stückelberg interferometry' with ultracold molecules

M. Mark·T. Kraemer·P. Waldburger·J. Herbig·C. Chin·H. -C. Naegerl·R. Grimm
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Abstract

We report on the realization of a time-domain `Stückelberg interferometer', which is based on the internal state structure of ultracold Feshbach molecules. Two subsequent passages through a weak avoided crossing between two different orbital angular momentum states in combination with a variable hold time lead to high-contrast population oscillations. This allows for a precise determination of the energy difference between the two molecular states. We demonstrate a high degree of control over the interferometer dynamics. The interferometric scheme provides new possibilities for precision measurements with ultracold molecules.

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M. Mark, T. Kraemer, P. Waldburger, J. Herbig, C. Chin, H. -C. Naegerl, R. Grimm. 2007-04-04. `Stückelberg interferometry' with ultracold molecules. https://doi.org/10.1103/physrevlett.99.113201

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