Measurements of the electron’s electric dipole moment (eEDM) are demanding tests of physics beyond the standard model. We describe how ultracold YbF molecules could be used to improve the precision of eEDM measurements by two to three orders of magnitude. Using numerical simulations, we show how the combination of magnetic focussing, two-dimensional transverse laser cooling, and frequency-chirped laser slowing, can produce an intense, slow, highly-collimated molecular beam. We show how to make a magneto-optical trap of YbF molecules and how the molecules could be loaded into an optical lattice. eEDM measurements could be made using the slow molecular beam or using molecules trapped in the lattice. We estimate the statistical sensitivity that could be reached in each case and consider how sources of noise can be reduced so that the shot-noise limit of sensitivity can be reached. We also consider systematic effects due to magnetic fields and vector light shifts and how they could be controlled.

电子电偶极矩（eEDM）的测量要求对物理进行超出标准模型的测试。我们描述了如何使用超冷的YbF分子将eEDM测量的精度提高2到3个数量级。使用数值模拟，我们展示了磁聚焦，二维横向激光冷却和频率frequency激光减速的组合如何产生强烈，缓慢，高度准直的分子束。我们展示了如何制作YbF分子的磁光阱，以及如何将分子加载到光学晶格中。eEDM测量可以使用慢分子束或陷在晶格中的分子进行。我们估计每种情况下可以达到的统计灵敏度，并考虑如何减少噪声源，以便可以达到灵敏度的散粒噪声极限。我们还将考虑由于磁场和矢量光偏移而产生的系统影响以及如何控制它们。