Spontaneous dissociation of 85Rb Feshbach molecules.
Spontaneous dissociation of 85Rb Feshbach molecules.
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85Rb Feshbach 分子的自发解离。
DOI：
10.1142/9789812813787_0088
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发表时间：
2005
影响因子：
8.6
通讯作者：
C. Wieman
中科院分区：
文献类型：
--
作者：
S. T. Thompson;E. Hodby;C. Wieman
在用于产生85 Rb二聚体的Feshbach共振附近，观察到85 Rb二聚体在最高振动能级的自发解离。分子寿命对磁场有很强的依赖性，在155.5 ~ 162.2G之间变化3个数量级。我们的测量结果与理论预测吻合得很好，其中分子解离是由非弹性自旋弛豫驱动的。在Feshbach共振正上方的大约1G宽的区域内可以实现几十毫秒的分子寿命。
The spontaneous dissociation of 85Rb dimers in the highest lying vibrational level has been observed in the vicinity of the Feshbach resonance that was used to produce them. The molecular lifetime shows a strong dependence on magnetic field, varying by 3 orders of magnitude between 155.5 G and 162.2 G. Our measurements are in good agreement with theoretical predictions in which molecular dissociation is driven by inelastic spin relaxation. Molecule lifetimes of tens of milliseconds can be achieved within approximately a 1 G wide region directly above the Feshbach resonance.