Feshbach resonances in ultracold K(39)
Atomic Physics
2009-11-13 v1
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.
Cite
@article{arxiv.0705.3036,
title = {Feshbach resonances in ultracold K(39)},
author = {C. D'Errico and M. Zaccanti and M. Fattori and G. Roati and M. Inguscio and G. Modugno and A. Simoni},
journal= {arXiv preprint arXiv:0705.3036},
year = {2009}
}