标题： 原子干涉仪中的He-McKellar-Wilkens拓扑相位 显示英文标题

标题： He-McKellar-Wilkens topological phase in atom interferometry

摘要： 我们报道了对1993年由He和McKellar以及Wilkens预测的拓扑相的首次实验检验：当一个电偶极子在磁场中传播时出现的这个相位，通过电-磁对偶性与Aharonov-Casher效应相关联。 He-McKellar-Wilkens相位非常小，在我们的实验中最多为27毫弧度，并且此实验需要我们具有空间分离臂的原子干涉仪的高相位灵敏度，以及电场和磁场方向之类的对称性反转。 测得的He-McKellar-Wilkens相位与其理论值相差31%，这一差异可能是由于尚未控制的一些系统误差所致。 显示英文摘要

摘要： We report the first experimental test of the topological phase predicted by He and McKellar and by Wilkens in 1993: this phase, which appears when an electric dipole propagates in a magnetic field, is connected to the Aharonov-Casher effect by electric-magnetic duality. The He-McKellar-Wilkens phase is quite small, at most 27 mrad in our experiment, and this experiment requires the high phase sensitivity of our atom interferometer with spatially separated arms as well as symmetry reversals such as the direction of the electric and magnetic fields. The measured value of the He-McKellar-Wilkens phase differs by 31% from its theoretical value, a difference possibly due to some as yet uncontrolled systematic errors.