New Classes of Systematic Effects in Gas Spin Comagnetometers
New Classes of Systematic Effects in Gas Spin Comagnetometers
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DOI：
10.1103/physrevlett.113.163002
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发表时间：
2014-10-16
影响因子：
8.6
通讯作者：
Romalis, M. V.
中科院分区：
文献类型：
--
作者：
Sheng, D.;Kabcenell, A.;Romalis, M. V.
原子余磁力计广泛用于寻找标准模型以外的自旋相互作用的精密测量。我们描述了一种新的He-3-He-129 comagnetometer探测Rb原子，并用它来确定两个一般类的系统效应的气体comagnetometers，一个与扩散在二阶磁场梯度和另一个由于温度梯度。我们还开发和实验确认一个通用的和实用的方法计算自旋弛豫和频率偏移由于任意磁场梯度。
Atomic comagnetometers are widely used in precision measurements searching for spin interactions beyond the standard model. We describe a new He-3-Xe-129 comagnetometer probed by Rb atoms and use it to identify two general classes of systematic effects in gas comagnetometers, one associated with diffusion in second-order magnetic-field gradients and another due to temperature gradients. We also develop and confirm experimentally a general and practical approach for calculating spin relaxation and frequency shifts due to arbitrary magnetic-field gradients.