Ultracold heteronuclear three-body systems: How diabaticity limits the universality of recombination into shallow dimers
arXiv:1706.10280 · doi:10.1103/PhysRevLett.120.023401
Abstract
The mass-imbalanced three-body recombination process that forms a shallow dimer is shown to possess a rich Efimov-Stückelberg landscape, with corresponding spectra that differ fundamentally from the homonuclear case. A semi-analytical treatment of the three-body recombination predicts an unusual spectra with intertwined resonance peaks and minima, and yields in-depth insight into the behavior of the corresponding Efimov spectra. In particular, the patterns of the Efimov-Stückelberg landscape are shown to depend inherently on the degree of diabaticity of the three-body collisions, which strongly affects the universality of the heteronuclear Efimov states.
Accepted for publication in Phys. Rev. Lett., 6 pages, 3 figures
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