论文标题
QED中的$ n $ n $ point fermion相关器的广义LKF转换
Generalized LKF transformations for $N$-point fermion correlators in QED
论文作者
论文摘要
在量子电动力学（QED）的全球方法中，研究了光子的协变量量规参数$ξ$的变化，以分析配置空间相关函数的非扰动规格依赖性，从而得出了Landau-Kalatnikov-fradkinke-fradkinkin-frademations的概括（LKFT）。这些转换揭示了位置空间幅度的非扰动量规依赖性如何吸收到乘法指数因子中。
Within the worldline approach to quantum electrodynamics (QED), a change of the photon's covariant gauge parameter $ξ$ is investigated to analyse the non-perturbative gauge dependence of the configuration space fermion correlation functions, deriving a generalization of the Landau-Kalatnikov-Fradkin transformations (LKFt). These transformations reveal how the non-perturbative gauge dependence of position space amplitudes can be absorbed into a multiplicative exponential factor.
