w(1+infinity) and the Celestial Sphere
High Energy Physics - Theory
2021-11-09 v2 General Relativity and Quantum Cosmology
Abstract
It is shown that the infinite tower of tree-level soft graviton symmetries in asymptotically flat 4D quantum gravity can be organized into a single chiral 2D Kac-Moody symmetry based on the wedge algebra of w(1+infinity). The infinite towers of soft photon or gluon symmetries also transform irreducibly under w(1+infinity).
Keywords
Cite
@article{arxiv.2105.14346,
title = {w(1+infinity) and the Celestial Sphere},
author = {Andrew Strominger},
journal= {arXiv preprint arXiv:2105.14346},
year = {2021}
}
Comments
7 pages, revised version to appear in PRL