论文标题
量子电动力学中任意费物相关函数的非扰动仪表转换
Non-perturbative gauge transformations of arbitrary fermion correlation functions in quantum electrodynamics
论文作者
论文摘要
我们研究了穿着的电子传播器和一般$ n $点功能的转换，这是内部光子传播器的协变量量表的变化。我们重新建立了众所周知的landau-khalatnikov-fradkin转换，用于传播器，并将其推广到配置空间中的任意相关函数，发现它与标量场的类似结果一致。我们评论在动量空间中扰动应用的后果。
We study the transformation of the dressed electron propagator and the general $N$-point functions under a change in the covariant gauge of internal photon propagators. We re-establish the well known Landau-Khalatnikov-Fradkin transformation for the propagator and generalise it to arbitrary correlation functions in configuration space, finding that it coincides with the analogous result for scalar fields. We comment on the consequences for perturbative application in momentum-space.
