An Introduction to Motivic Feynman Integrals
Universit&, Claudia Rella, #233, de Gen&, #232, ve, Switzerland
Abstract
Open-access reader
Universit&, Claudia Rella, #233, de Gen&, #232, ve, Switzerland
Abstract
Open-access reader
This article gives a short step-by-step introduction to the representation of parametric Feynman integrals in scalar perturbative quantum field theory as periods of motives. The application of motivic Galois theory to the algebro-geometric and categorical structures underlying Feynman graphs is reviewed up to the current state of research. The example of primitive log-divergent Feynman graphs in scalar massless phi4 quantum field theory is analysed in detail.
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This article gives a short step-by-step introduction to the representation of parametric Feynman integrals in scalar perturbative quantum field theory as periods of motives. The application of motivic Galois theory to the algebro-geometric and categorical structures underlying Feynman graphs is reviewed up to the current state of research. The example of primitive log-divergent Feynman graphs in scalar massless phi4 quantum field theory is analysed in detail.
Key concepts: Feynman integral, Feynman diagram, Mathematics, Feynman graph, Algebra over a field, Physics, Pure mathematics, Mathematical physics