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arXiv · 0705.3036

Feshbach resonances in ultracold K(39)

C. D'Errico·M. Zaccanti·M. Fattori·G. Roati·M. Inguscio·G. Modugno·A. Simoni
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Abstract

We discover several magnetic Feshbach resonances in collisions of ultracold K(39) atoms, by studying atom losses and molecule formation. Accurate determination of the magnetic-field resonance locations allows us to optimize a quantum collision model for potassium isotopes. We employ the model to predict the magnetic-field dependence of scattering lengths and of near-threshold molecular levels. Our findings will be useful to plan future experiments on ultracold potassium atoms and molecules.

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C. D'Errico, M. Zaccanti, M. Fattori, G. Roati, M. Inguscio, G. Modugno, A. Simoni. 2007-05-21. Feshbach resonances in ultracold K(39). https://doi.org/10.1088/1367-2630/9/7/223

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