Hepp 界:费曼图与拟阵
Hepp's bound for Feynman graphs and matroids
AI总结:
本文通过热带化费曼周期积分定义有理拟阵不变量,等于拟阵多胞体极的体积,给出高效计算公式,并证明其满足费曼积分恒等式,利用热带与超越积分相关性近似未知周期。
摘要:
我们研究了一个有理拟阵不变量,它通过费曼周期积分的热带化获得。该不变量等于拟阵多胞体极的体积,我们给出了其计算的高效公式。该不变量被证明满足费曼积分对于图的所有已知恒等式。我们观察到热带积分与超越积分之间存在强相关性,这提供了一种近似未知费曼周期的方法。
英文摘要:
We study a rational matroid invariant, obtained as the tropicalization of the Feynman period integral. It equals the volume of the polar of the matroid polytope and we give efficient formulas for its computation. This invariant is proven to respect all known identities of Feynman integrals for graphs. We observe a strong correlation between the tropical and transcendental integrals, which yields a method to approximate unknown Feynman periods.
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。