Graviton scattering amplitudes in first quantisation
Abstract
We give a pedagogical review to alternative, first quantised approaches to calculating graviton scattering amplitudes, giving an introduction to string inspired approaches and presenting more recent work based on the worldline formalism of quantum field theory that is motivated by these historic results. We describe how these first quantised techniques can greatly simplify the determination of such amplitudes, in particular reducing the number of Feynman-like diagrams that enter the computation and leading to compact results.
Cite
@article{arxiv.2201.01697,
title = {Graviton scattering amplitudes in first quantisation},
author = {James P. Edwards},
journal= {arXiv preprint arXiv:2201.01697},
year = {2022}
}
Comments
8 pages, various figures. A pedagogical introduction aimed at graduate students: prepared for submission to the Suplemento de la Revista Mexicana de F\'isica as proceedings for the XIX Mexican School of Particles and Fields held online in August 2021