论文标题
量子电动力学中的枚举方法
Enumerative Methods in Quantum Electrodynamics
论文作者
论文摘要
我们表明，QED型理论中的可观察物可以通过称为和弦图的组合结构来实现。该组合表示的一个优点是，它简化了对相应绿色功能的渐近行为的研究。特别是，使用新表示，无需使用奇异性分析的标准方法。这种关系还揭示了Yukawa理论中Feynman图的数量与QED QED中的图之间的相关性。
We show that observables in QED-type theories can be realized in terms of a combinatorial structure called chord diagrams. One advantage of this combinatorial representation is that it simplifies the study of the asymptotic behavior of corresponding Green functions. Particularly, using the new representation, there is no need to use the standard approach of singularity analysis. This relation also reveals the unexplained correlation between the number of Feynman diagrams in Yukawa theory and the diagrams in quenched QED.
