Nonuniversal Efimov atom-dimer resonances in a three-component mixture of 6Li.
Nonuniversal Efimov atom-dimer resonances in a three-component mixture of 6Li.
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DOI：
10.1103/physrevlett.105.023201
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发表时间：
2010-03
影响因子：
8.6
通讯作者：
S. Nakajima;M. Horikoshi;T. Mukaiyama;P. Naidon;Masahito Ueda
中科院分区：
文献类型：
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作者：
S. Nakajima;M. Horikoshi;T. Mukaiyama;P. Naidon;Masahito Ueda
我们观察到在6Li原子的三组分混合物中，由于Efimov态的存在，原子-二聚体的损耗增加。我们测量了|1>；态原子和|2>；和|3>；态形成的二聚体的混合物中原子-二聚体损耗与磁场的关系，发现了对应于|23>；二聚体和基态和第一激发态Efimov三聚体能级简并点的两个峰。我们发现，这些峰的位置与普遍的理论预测不一致，这是非普遍的两体性质无法解释的。我们建立了描述三组分6Li原子在低能区的非普适三体物理的理论模型。
We observed an enhanced atom-dimer loss due to the existence of Efimov states in a three-component mixture of 6Li atoms. We measured the magnetic-field dependence of the atom-dimer loss in the mixture of atoms in state |1> and dimers formed in states |2> and |3>, and found two peaks corresponding to the degeneracy points of the energy levels of |23> dimers and the ground and first excited Efimov trimers. We found that the locations of these peaks disagree with universal theory predictions, in a way that cannot be explained by nonuniversal two-body properties. We constructed theoretical models that characterize the nonuniversal three-body physics of three-component 6Li atoms in the low-energy domain.