Recent progress in intersection theory for Feynman integrals decomposition

TL;DR

This paper reviews recent advances in intersection theory for Feynman integrals, focusing on algorithms for intersection number evaluation and their role in simplifying complex calculations in quantum field theory.

Contribution

It introduces new algorithms for computing intersection numbers and demonstrates their application to the reduction of Feynman integrals in perturbative QFT.

Findings

Improved algorithms for intersection number evaluation.

Successful application to complex Feynman integral reductions.

Enhanced efficiency in high-precision quantum field theory calculations.

Abstract

High precision calculations in perturbative QFT often require evaluation of big collection of Feynman integrals. Complexity of this task can be greatly reduced via the usage of linear identities among Feynman integrals. Based on mathematical theory of intersection numbers, recently a new method for derivation of such identities and decomposition of Feynman integrals was introduced and applied to many non-trivial examples. In this note we discuss the latest developments in algorithms for the evaluation of intersection numbers, and their application to the reduction of Feynman integrals.