Geometry and causal flux in multi-loop Feynman diagrams
| Autor: | Sborlini, German Fabricio Roberto |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
scattering amplitude: representation
loop integral High Energy Physics - Theory causality geometry Feynman graph FOS: Physical sciences singularity High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) High Energy Physics - Theory (hep-th) duality entanglement representation [scattering amplitude] |
| Zdroj: | XIX Mexican School of Particles and Fields, CDMX, Mexico, 2021-08-09-2021-08-13 |
| DOI: | 10.48550/arxiv.2109.14476 |
| Popis: | In this review, we discuss recent developments concerning efficient calculations of multi-loop multi-leg scattering amplitudes. Inspired by the remarkable properties of the Loop-Tree Duality (LTD), we explain how to reconstruct an integrand level representation of scattering amplitudes which only contains physical singularities. These so-called causal representations can be derived from connected binary partitions of Feynman diagrams, properly entangled according to specific rules. We will focus on the detection of flux orientations which are compatible with causality, describing the implementation of a quantum algorithm to identify such configurations. Comment: 9 pages, 3 figures. Contribution to the Proceedings of XIX Mexican School of Particle and Fields (August 9-13, 2021) |
| Databáze: | OpenAIRE |
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