Atomic Clock Measurements of Quantum Scattering Phase Shifts Spanning Feshbach Resonances at Ultralow Fields.

Atomic Clock Measurements of Quantum Scattering Phase Shifts Spanning Feshbach Resonances at Ultralow Fields.
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超低场下跨越费什巴赫共振的量子散射相移的原子钟测量。

DOI:
10.1103/physrevlett.119.113401
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发表时间:
2017
影响因子:
8.6
通讯作者:
Bennett A
Bennett A
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Bennett A

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我们使用原子喷泉时钟来精确测量量子散射相移,通过一系列低于平均碰撞能量的狭窄、低场Feshbach共振。我们在碰撞能量上的低扩散导致了处于几个态的目标原子的有序相变。我们将它们与理论模型进行比较,并根据拟合势确定测量的准确性和理论上的不确定度。我们发现总体上符合得很好,但有一些统计上的显著差异仍然无法解释。
We use an atomic fountain clock to measure quantum scattering phase shifts precisely through a series of narrow, low-field Feshbach resonances at average collision energies below. Our low spread in collision energy yields phase variations of orderfor target atoms in several,states. We compare them to a theoretical model and establish the accuracy of the measurements and the theoretical uncertainties from the fitted potential. We find overall excellent agreement, with small statistically significant differences that remain unexplained.
DOI: --
发表时间: 2015
期刊:
影响因子: --
作者:
A. Bennett
通讯作者: A. Bennett