Observation of a Feshbach resonance in cold atom scattering

被引：475

作者：

Courteille, P ^{[1
]}

Freeland, RS

Heinzen, DJ

van Abeelen, FA

Verhaar, BJ

机构：

[1] Univ Texas, Dept Phys, Austin, TX 78712 USA

[2] Eindhoven Univ Technol, NL-5600 MB Eindhoven, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.81.69

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We probe s-wave collisions of laser-cooled Rb-85(f = 2, m(f) = -2) atoms with Zeeman-resolved photoassociation spectroscopy. We observe that these collisions exhibit a magnetically tunable Feshbach resonance, and determine that this resonance tunes to zero energy at a magnetic field of 163 +/- 7 G. This result indicates that the self-interaction energy of an Rb-85 Bose-Einstein condensate can be magnetically tuned. We also demonstrate that Zeeman-resolved photoassociation spectroscopy provides a useful new tool for the study of ultracold atomic collisions.

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页码：69 / 72

页数：4

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