论文标题
aharonov-bohm干扰中本地阶段的仪表不变性:量子电动力学方法
Gauge invariance of the local phase in the Aharonov-Bohm interference: quantum electrodynamic approach
论文作者
论文摘要
在aharonov-bohm(AB)效应中,在没有与外部电磁场的局部重叠的情况下,观察到带电粒子的干扰条纹。这种相互作用的明显非局部性或电势的重要作用的概念最近受到了挑战,并且正在辩论。量子电动力学方法提供了一个微观图片,说明了电荷和外场之间相互作用的特征。我们明确显示了磁化AB效应中局部相移的规格不变性,这与使用通常的半经典矢量电位获得的结果相反。我们的研究可以解决磁化ab效应中的位置问题。但是,在电动对应物中,虚拟标量光子发挥至关重要的作用,问题并未以相同的方式解决。
In the Aharonov-Bohm (AB) effect, interference fringes are observed for a charged particle in the absence of the local overlap with the external electromagnetic field. This notion of the apparent nonlocality of the interaction or the significant role of the potential has recently been challenged and are under debate. The quantum electrodynamic approach provides a microscopic picture of the characteristics of the interaction between a charge and an external field. We explicitly show the gauge invariance of the local phase shift in the magnetic AB effect, which is in contrast to the results obtained using the usual semiclassical vector potential. Our study can resolve the issue of the locality in the magnetic AB effect. However, the problem is not solved in the same way in the electric counterpart wherein virtual scalar photons play an essential role.