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arXiv · 1003.4891

Nuclear-spin-independent short-range three-body physics in ultracold atoms

Noam Gross·Zav Shotan·Servaas Kokkelmans·Lev Khaykovich
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Abstract

We investigate three-body recombination loss across a Feshbach resonance in a gas of ultracold 7Li atoms prepared in the absolute ground state and perform a comparison with previously reported results of a different nuclear-spin state [N. Gross et.al., Phys. Rev. Lett. 103 163202, (2009)]. We extend the previously reported universality in three-body recombination loss across a Feshbach resonance to the absolute ground state. We show that the positions and widths of recombination minima and Efimov resonances are identical for both states which indicates that the short-range physics is nuclear-spin independent.

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Noam Gross, Zav Shotan, Servaas Kokkelmans, Lev Khaykovich. 2012-05-28. Nuclear-spin-independent short-range three-body physics in ultracold atoms. https://doi.org/10.1103/physrevlett.105.103203

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