论文标题
量子场理论中的一般自旋总和
General Spin Sums in Quantum Field Theory
论文作者
论文摘要
在量子场理论中，散射幅度是从传播器计算出来的，这些传播器对于内部线，是基于自旋/极化和偏振关系的。反过来，这些通常是在自由场方程的平面波解上构建的。现在可能出现的一个问题是是否可以推广此类自旋/极化-AM。过去，就米歇尔 - 认同人的身份而言，第一次尝试将费米尼族领域的旋转总和推广。在本文中，我们的目标是在QFT范围内找到最通用的费米子场的旋转总和。
In Quantum Field Theory, scattering amplitudes are computed from propagators which, for internal lines, are built upon spin/polarization-sum relationships. In turn, these are normally constructed upon plane-wave solutions of the free field equations. A question that may now arise is whether such spin/polarization-sums can be generalized. In the past, there has been a first attempt at generalizing spin sums for fermionic fields in terms of the Michel-Wightman identities. In this paper, we aim to find the most general spin sums for fermionic fields within the range of QFT.
