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arXiv physics/9808018physics.atom-ph
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共振磁场对冷~(85)Rb弹性散射的控制

Resonant magnetic field control of elastic scattering of cold 85Rb

J. L. Roberts, N. R. Claussen, James P. Burke,, Chris H. Greene, E. A. Cornell, C. E. Wieman

摘要:

在~(85)Rb原子F = 2,M = -2态的弹性散射碰撞速率中,观察到了与磁场有关的费什巴赫共振.将磁场改变几个高斯,碰撞率就会改变10,000倍,散射长度的符号可以保留。共振峰位于155.2(4)G,峰宽为11.6(5)G。从这些结果中,我们提取出的三个数量,表征相互作用的potassium大大改善值:范德华系数C6,单重散射长度,和三重散射长度。

英文摘要:

A magnetic field dependent Feshbach resonance has been observed in the elastic scattering collision rate between atoms in the F = 2, M = -2 state of 85 Rb. Changing the magnetic field by several Gauss caused the collision rate to vary by a factor of 10,000, and the sign of the scattering length could be reserved. The resonance peak is at 155.2(4) G and its width is 11.6(5) G. From these results we extract much improved values for the three quantities that characterize the interaction porential: the van der Waals coefficient C6, the singlet scattering length, and the triplet scattering length.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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