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

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

2010-03-25

arxiv.org/abs/1003.4891v3

Phys. Rev. Lett. 105, 103203 (2010)

Physics

Condensed Matter

Quantum Gases

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.105.103203

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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