Observation of a shape resonance in the collision of two cold Rb-87 atoms

被引：109

作者：

Boesten, HMJM ^{[1
]}

Tsai, CC ^{[1
]}

Gardner, JR ^{[1
]}

Heinzen, DJ ^{[1
]}

Verhaar, BJ ^{[1
]}

机构：

[1] UNIV TEXAS, AUSTIN, TX 78712 USA

来源：

PHYSICAL REVIEW A | 1997年 / 55卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.55.636

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We observe a shape resonance in the scattering of two ultracold Rb-87 atoms, causing the colliding atoms to form a long-living compound system inside an l=2 centrifugal barrier. Its existence follows from a photoassociation experiment in a gas sample of doubly polarized Rb-87 atoms. Using it we are able to carry out direct determinations of the triplet scattering length for Rb-87, relevant to Bose-Einstein condensation experiments, and of the Rb+Rb C-6 dispersion coefficient. Consequences for the Rb-85 scattering length are discussed.

引用

页码：636 / 640

页数：5

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