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arXiv 1208.6477hep-th
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规范场的量子化、图多项式和图上同调

Quantization of gauge fields, graph polynomials and graph cohomology

Dirk Kreimer, Matthias Sars, Walter D. van Suijlekom

摘要:

我们回顾了利用3-正则图的代数性质对规范场进行量子化的研究。本文从连通3-正则图的标量被积函数出发,导出了非交换规范理论在协变规范中量子化的n圈处的费曼被积函数。过渡到全规范理论振幅是通过使用第三个,新的,图形多项式,花冠多项式。这意味着有效的协变量化没有鬼,其中所有相关的迹象鬼部门纳入一个双重复杂的花冠多项式提供-我们称之为循环同源性-和图同源性。

英文摘要:

We review quantization of gauge fields using algebraic properties of 3-regular graphs. We derive the Feynman integrand at n loops for a non-abelian gauge theory quantized in a covariant gauge from scalar integrands for connected 3-regular graphs, obtained from the two Symanzik polynomials. The transition to the full gauge theory amplitude is obtained by the use of a third, new, graph polynomial, the corolla polynomial. This implies effectively a covariant quantization without ghosts, where all the relevant signs of the ghost sector are incorporated in a double complex furnished by the corolla polynomial -we call it cycle homology- and by graph homology.

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