Large effects of electric fields on atom-molecule collisions at millikelvin temperatures.

Large effects of electric fields on atom-molecule collisions at millikelvin temperatures.
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电场对毫开温度下原子-分子碰撞的巨大影响。

DOI:
10.1103/physrevlett.106.193201
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发表时间:
2011
影响因子:
8.6
通讯作者:
Parazzoli LP
Parazzoli LP
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Parazzoli LP

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利用外场控制冷分子之间的相互作用可以阐明量子力学在分子碰撞中的作用。我们创建了一个新的实验平台,其中超冷铷原子和冷氨分子分别被磁场和电场捕获,然后结合起来研究碰撞。我们观察到的非弹性过程比预期的更快,从早期的无场计算。我们使用量子散射计算表明,电场可以有一个重大的影响碰撞的结果,即使在没有偶极-偶极相互作用。
Controlling interactions between cold molecules using external fields can elucidate the role of quantum mechanics in molecular collisions. We create a new experimental platform in which ultracold rubidium atoms and cold ammonia molecules are separately trapped by magnetic and electric fields and then combined to study collisions. We observe inelastic processes that are faster than expected from earlier field-free calculations. We use quantum scattering calculations to show that electric fields can have a major effect on collision outcomes, even in the absence of dipole-dipole interactions.
原子束和分子束方法,第 1 卷
DOI: --
发表时间: 1991
期刊:
影响因子: --
作者:
W. Steckelmacher
通讯作者: W. Steckelmacher