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Reconstruction of Rb-Rb inter-atomic potential from ultracold Bose-gas collision

Dániel Schumayer·Oliver Melchert·Werner Scheid·Barnabás Apagyi
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Abstract

Scattering phase shifts obtained from 87Rb Bose-gas collision experiments are used to reconstruct effective potentials resulting, self-consistently, in the same scattering events observed in the experiments at a particular energy. We have found that the interaction strength close to the origin suddenly changes from repulsion to attraction when the collision energy crosses, from below, the l=2 shape resonance position at E = 275 mikroK. This observation may be utilized in outlining future Bose-gas collision experiments.

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Dániel Schumayer, Oliver Melchert, Werner Scheid, Barnabás Apagyi. 2007-02-24. Reconstruction of Rb-Rb inter-atomic potential from ultracold Bose-gas collision. https://doi.org/10.1088/0953-4075%2F41%2F3%2F035302

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