Ultracold heteronuclear three-body systems: How diabaticity limits the universality of recombination into shallow dimers

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.

arXiv commentAccepted for publication in Phys. Rev. Lett., 6 pages, 3 figures

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Cited by in corpus (8)

• Few-body correlations in two-dimensional Bose and Fermi ultracold mixtures
• Efimov resonance position near a narrow Feshbach resonance in ${}^6$Li-${}^{133}$Cs mixture
• Efimov physics in the complex plane
• Universal Three-Body Parameter of Heavy-Heavy-Light systems with negative intraspecies scattering length
• Dynamical excitation processes and correlations of three-body two-dimensional mixtures
• Asymmetric lineshapes of Efimov resonances in mass-imbalanced ultracold gases
• Three-body recombination near the d-wave resonance in ultracold ${}^{85}$Rb\,-${}^{87}$Rb mixtures
• Density effects on the interferometry of Efimov states by modulating magnetic fields