论文标题
使用弱测量的新型中子电偶极矩搜索的方法
Novel approach to neutron electric dipole moment search using weak measurement
论文作者
论文摘要
我们通过在弱测量中利用信号扩增（称为弱值扩增）来提出一种新的方法来寻找中子电偶极矩（EDM）。考虑到可以测量可以测量自旋磁矩相互作用的弱测量值的类比，我们通过具有空间梯度的外部电场检查了与偏振中子束的实验设置，该梯度对EDM相互作用敏感。特别是，对预选前后杂质的影响进行专门分析。我们表明，弱值扩增发生在最多两个数量级增强信号的情况下，并证明了所提出的设置对中子EDM的潜在灵敏度。
We propose a novel approach in a search for the neutron electric dipole moment (EDM) by taking advantage of signal amplification in a weak measurement, known as weak value amplification. Considering an analogy to the weak measurement that can measure the spin magnetic moment interaction, we examine an experimental setup with a polarized neutron beam through an external electric field with spatial gradient, where the signal is sensitive to the EDM interaction. In particular, a dedicated analysis of effects from impurities in pre- and post-selections is performed. We show that the weak value amplification occurs where the signal is enhanced by up to two orders of magnitude, and demonstrate a potential sensitivity of the proposed setup to the neutron EDM.
