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arXiv 1302.0080math-phmath.COmath.MP
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微扰量子场论中的一些组合解释

Some combinatorial interpretations in perturbative quantum field theory

Karen Yeats

摘要:

本文将描述组合解释如何帮助我们理解微扰量子场论的两个方面的代数结构,即解析的戴森-施温格方程和标量费曼图的周期。具体的例子,这将是看,一个更好的减少几何级数戴森,Schwinger方程,一个子图,产生额外的分母减少标量费曼积分,并解释了一个技巧的布朗和Schnetz得到一个额外的步骤,分母减少一个重要的特定图形。

英文摘要:

This paper will describe how combinatorial interpretations can help us understand the algebraic structure of two aspects of perturbative quantum field theory, namely analytic Dyson-Schwinger equations and periods of scalar Feynman graphs. The particular examples which will be looked at are, a better reduction to geometric series for Dyson-Schwinger equations, a subgraph which yields extra denominator reductions in scalar Feynman integrals, and an explanation of a trick of Brown and Schnetz to get one extra step in the denominator reduction of an important particular graph.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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