RESONANT MAGNETIC FIELD CONTROL OF ELASTIC SCATTERING IN COLD 85RB
RESONANT MAGNETIC FIELD CONTROL OF ELASTIC SCATTERING IN COLD 85RB
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DOI：
10.1103/physrevlett.81.5109
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发表时间：
1998-08
影响因子：
8.6
通讯作者：
J. L. Roberts;N. Claussen;J. P. Burke;Jr.;C. Greene;E. Cornell;C. Wieman
中科院分区：
文献类型：
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作者：
J. L. Roberts;N. Claussen;J. P. Burke;Jr.;C. Greene;E. Cornell;C. Wieman
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Feshbach共振。将磁场改变几个高斯会导致碰撞率改变10，000倍，并且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，我们提取的三个数量，表征相互作用的potential：的货车的范德华系数C6，单重散射长度，和三重散射长度大大改善值。
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.