论文标题

Efimov能量水平反弹了原子二聚体连续体

Efimov energy level rebounding off the atom-dimer continuum

论文作者

Yudkin, Yaakov, Elbaz, Roy, Khaykovich, Lev

论文摘要

Efimov的效应及其弱结合的三原子分子的阶梯在理论上有争议的和实验要求的范围内提出了有趣的问题,即与原子 - 二聚体连续体合并Efimov Efimov能级。使用原始的实验技术,利用了双原子和三局分子的相干叠加态,我们研究了这种制度并揭示了惊人的行为:而不是与原子 - 二聚体连续体合并,而是将三聚体能量从中反弹并再次变得更深的结合状态。此外,我们观察到一个相当狭窄的共鸣,而不是在两个级别之间进行切向方法,为几个体体理论提供了新的挑战和指南,以融入现实的原子间潜力。

The Efimov effect, with its ladder of weakly bound three-atomic molecules, poses intriguing questions in the theoretically controversial and experimentally demanding regime of merging of the first excited Efimov energy level with the atom-dimer continuum. Using an original experimental technique, where a coherent superposition state of diatomic and triatomic molecules is utilized, we investigate this regime and reveal a striking behavior: Instead of merging with the atom-dimer continuum the trimer energy level rebounds from it and becomes a deeper bound state again. In addition, instead of a tangential approach between the two levels we observe a rather narrow resonance, providing a new challenge and guide for few-body theories to incorporate realistic interatomic potentials.

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