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

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.

4 pages, 4 figures

References in corpus (6)

• Inter-isotope determination of ultracold rubidium interactions from three high-precision experiments
• Feshbach resonances in rubidium 87: Precision measurement and analysis
• Interferometric determination of the s- and d-wave scattering amplitudes in ${}^{87}$Rb
• Imaging of s and d partial-wave interference in quantum scattering of identical bosonic atoms
• Improved Characterization of Elastic Scattering Near a Feshbach Resonance in 85Rb
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Cited by in corpus (3)

• On nonsingular potentials of Cox-Thompson inversion scheme
• Simplified solutions of the Cox-Thompson inverse scattering method at fixed energy
• Semi-analytic equations to the Cox-Thompson inverse scattering method at fixed energy for special cases