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arXiv 2012.15812hep-th
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平面图的符号字母表II:有理字母

Symbol Alphabets from Plabic Graphs II: Rational Letters

Jorge Mago, Anders Schreiber, Marcus Spradlin, Akshay Yelleshpur Srikant, Anastasia Volovich

摘要:

在N=4的超杨-米尔斯理论中,n粒子振幅的符号表包含了Gr(4,n)的某些簇变量以及簇变量的某些代数函数。本系列的第一篇论文arXiv:2007.00646关注n=8的代数字母。本文证明了,如果允许C是Gr+(n-4,n)顶胞的任意簇参数化,则有可能通过解CZ = 0形式的矩阵方程得到所有有理符号字母(实际上是所有簇变量).

英文摘要:

Symbol alphabets of n-particle amplitudes in N=4 super-Yang-Mills theory are known to contain certain cluster variables of Gr(4,n) as well as certain algebraic functions of cluster variables. The first paper arXiv:2007.00646 in this series focused on n=8 algebraic letters. In this paper we show that it is possible to obtain all rational symbol letters (in fact all cluster variables) by solving matrix equations of the form C Z = 0 if one allows C to be an arbitrary cluster parameterization of the top cell of Gr_+(n-4,n).

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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