Kerr-Schild solutions in Multigravity and the Classical Double Copy
General Relativity and Quantum Cosmology
2026-02-20 v1 High Energy Physics - Theory
Mathematical Physics
math.MP
Classical Physics
Abstract
We explore the multimetric theory of gravitation, also known as multigravity. We derive additional new exact solutions for the theory in proportional Kerr-Schild and double Kerr-Schild forms. We extend several solutions from the theory of General Relativity, characterized by a constant Ricci scalar in single and double Kerr-Schild forms, to derive solutions in the multi-gravity context. We also examine and extend the classical double copy relations that can be constructed out from these solutions in multigravity exploring the dynamics of the single copy and zero copy fields.
Keywords
Cite
@article{arxiv.2602.16905,
title = {Kerr-Schild solutions in Multigravity and the Classical Double Copy},
author = {Hugo García-Compeán and Everardo Rivera-Oliva},
journal= {arXiv preprint arXiv:2602.16905},
year = {2026}
}
Comments
49 pages, no figures