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 semianalytical treatment of the three-body recombination predicts 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.

中文翻译：

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超冷异核三体系统：绝热如何限制重组为浅二聚体的普遍性。

形成浅二聚体的质量不平衡三体重组过程显示拥有丰富的Efimov-Stückelberg景观，其相应光谱与同核情况基本不同。对三体重组进行的半分析处理可预测具有互不相同的共振峰和极小值的不寻常光谱，并对相应Efimov光谱的行为产生深入的了解。特别是，Efimov-Stückelberg景观的模式显示出内在地取决于三体碰撞的绝热程度，这严重影响了异核Efimov状态的普遍性。