论文标题
空面因果扰动理论II中的量子电动力学II
Quantum electrodynamics in the null-plane causal perturbation theory II
论文作者
论文摘要
我们开发了在光线动力学中的量子量规不变性的完整表述，用于与无质量矢量量规场相互作用，在null平面因果扰动理论的框架中。我们将一般结果应用于量子电动力学，表明在零平面量规条件下进行量化时，光子换向分布中存在的所谓“量规术语”在计算以任何顺序计算物理S-操作机矩阵元件没有任何贡献。我们使用此结果证明该理论的正常化性，并在二阶中计算电子的自我能源。
We develop a complete formulation of quantum gauge invariance in light-front dynamics for interacting theories with massless vector gauge fields in the framework of null-plane causal perturbation theory. We apply the general results to quantum electrodynamics, showing that the so-called "gauge terms" present in the photon commutation distribution when quantized under the null-plane gauge condition have no contribution in the calculation of the physical S-operator matrix elements at any order. We use this result to prove the normalizability of the theory, and to calculate the electron's self-energy at second order.
