期刊
NATURE PHYSICS
卷 13, 期 8, 页码 731-+出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/NPHYS4130
关键词
-
资金
- NSF Materials Research Science and Engineering Centers [DMR-1420709]
- NSF [PHY-1511696]
- Grainger Fellowship
- Direct For Mathematical & Physical Scien
- Division Of Physics [1511696] Funding Source: National Science Foundation
Efimov physics is a universal phenomenon in quantum three-body systems. For systems with resonant two-body interactions, Efimov predicted an infinite series of three-body bound states with geometric scaling symmetry(1). These Efimov states, first observed in cold caesium atoms(2), have been recently reported in a variety of other atomic systems(3-13). The intriguing prospect of a universal absolute Efimov resonance position across Feshbach resonances remains an open question. Theories predict a strong dependence on the resonance strength for closed-channel-dominated Feshbach resonances, whereas experimental results have so far been consistent with the universal prediction. Here we directly compare the Efimov spectra in a Li-6-Cs-133 mixture near two Feshbach resonances which are very different in their resonance strengths, but otherwise almost identical. Our result shows a clear dependence of the absolute Efimov resonance position on Feshbach resonance strength and a clear departure from the universal prediction for the narrow Feshbach resonance.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据