Finite actions and asymptotic charges at null infinity for any spin
High Energy Physics - Theory
2025-10-23 v2
Abstract
We identify boundary terms renormalizing the free on-shell actions for massless fields of arbitrary spin, including electromagnetism and linearized gravity, with boundary conditions allowing for supertranslation-like asymptotic symmetries. Our focus is on null infinity, in any spacetime dimensions. We also comment on the renormalization of the corresponding asymptotic charges.
Cite
@article{arxiv.2507.19310,
title = {Finite actions and asymptotic charges at null infinity for any spin},
author = {Andrea Campoleoni and Arnaud Delfante and Dario Francia and Carlo Heissenberg},
journal= {arXiv preprint arXiv:2507.19310},
year = {2025}
}
Comments
10 pages. Comments and references added