Department of Physics, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
Phys Rev Lett. 2011 Apr 8;106(14):143201. doi: 10.1103/PhysRevLett.106.143201. Epub 2011 Apr 6.
The binding energy of an Efimov trimer state was precisely determined via radio-frequency association. It is found that the measurement results shift significantly with temperature, but that the shift becomes negligible at the lowest temperature in our experiment. The shift-free part of the trimer binding energy reveals a significant deviation from the nonuniversal theory prediction based on a three-body parameter with a monotonic binding-energy dependence.
通过射频缔合精确确定了 Efimov 三聚体态的束缚能。发现测量结果随温度显著移动，但在实验的最低温度下移动可以忽略不计。三聚体束缚能的无移动部分明显偏离了基于具有单调束缚能依赖性的三体参数的非普遍理论预测。
