Photoabsorption by ultracold atoms and the scattering length.
Photoabsorption by ultracold atoms and the scattering length.
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DOI：
10.1103/physrevlett.74.3581
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发表时间：
1995-05
影响因子：
8.6
通讯作者：
Robin Côté;Alexander Dalgarno;Y. Sun;R. Hulet
中科院分区：
文献类型：
--
作者：
Robin Côté;Alexander Dalgarno;Y. Sun;R. Hulet
结果表明，超冷原子气体中的光吸收依赖于一对原子散射中散射长度的符号和大小。在{sup 7}Li中的荧光测量被解释为三重散射长度是负的，而单重散射长度是正的。
It is shown that photoabsorption in a gas of ultracold atoms depends on the sign and magnitude of the scattering length in the scattering of a pair of atoms. Measurements of fluorescence in {sup 7}Li are interpreted to show that the triplet scattering length is negative and the singlet scattering length is positive.