Three-body recombination in heteronuclear mixtures at finite temperature

Abstract

Within the universal zero-range theory, we compute the three-body recombination rate to deep molecular states for two identical bosons resonantly interacting with each other and with a third atom of another species, in the absence of weakly bound dimers. The results allow for a quantitative understanding of loss resonances at finite temperature and, combined with experimental data, can be used for testing the Efimov universality and extracting the corresponding three-body parameters in a given system. Curiously, we find that the loss rate can be dramatically enhanced by the resonant heavy-heavy interaction, even for large mass ratios where this interaction is practically irrelevant for the Efimov scaling factor. This effect is important for analysing the recent loss measurements in the Cs-Li mixture.

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Cited by in corpus (29)

• Efimov Physics: a review
• Universal few-body physics and cluster formation
• Few-body physics in resonantly interacting ultracold quantum gases
• Precision Test of the Limits to Universality in Few-Body Physics
• Heteronuclear Efimov scenario with positive intraspecies scattering length
• Universal three-body physics in ultracold KRb mixtures
• Lindblad Equation for the Inelastic Loss of Ultracold Atoms
• Universal three-body recombination and Efimov resonances in an ultracold Li-Cs mixture
• Role of the intraspecies scattering length in the Efimov scenario with large mass difference
• Suppression of Unitary Three-body Loss in a Degenerate Bose-Fermi Mixture
• Few-body correlations in two-dimensional Bose and Fermi ultracold mixtures
• Isotopic shift of atom-dimer Efimov resonances in K-Rb mixtures: Critical effect of multichannel Feshbach physics
• Finite-temperature effects on a triatomic Efimov resonance in ultracold cesium
• Pair formation in quenched unitary Bose gases
• Three-body systems in physics of cold atoms and halo nuclei
• Ultracold heteronuclear three-body systems: How diabaticity limits the universality of recombination into shallow dimers
• Efimov resonance position near a narrow Feshbach resonance in ${}^6$Li-${}^{133}$Cs mixture
• Loss features in ultracold ${}^{162}$Dy gases: two- versus three-body processes
• Universal Three-Body Parameter of Heavy-Heavy-Light systems with negative intraspecies scattering length
• Disorder in order: Localization without randomness in a cold atom system
• Temperature dependence of an Efimov resonance in ${}^{39}\mathrm{K}$
• Correlated Gaussian Approach to Anisotropic Resonantly Interacting Few-Body Systems
• Analytic expression for three-body recombination rates into deep dimers
• An experimental platform for studying the heteronuclear Efimov effect with an ultracold mixture of ${}^6$Li and ${}^{133}$Cs atoms
• Asymmetric lineshapes of Efimov resonances in mass-imbalanced ultracold gases
• Window for Efimov physics for few-body systems with finite-range interactions
• The Efimov effect for heteronuclear three-body systems at positive scattering length and finite temperature
• Density effects on the interferometry of Efimov states by modulating magnetic fields
• Observable Resonances in Efimov-unfavored Systems