English

Self-dual classical higher-spin multicopy

High Energy Physics - Theory 2026-05-06 v3

Abstract

We show that the self-dual classical double copy can be straightforwardly extended to the higher-spin case when formulated in terms of light-cone gauge prepotentials. This allows us to construct a higher-spin extension for any self-dual spacetime that admits a Kerr-Schild form. We also discuss the counterpart of this procedure at the level of Weyl tensors. We find that, depending on the class of the original gravitational background, higher-spin Weyl tensors may follow various multicopy patterns.

Keywords

Cite

@article{arxiv.2604.13646,
  title  = {Self-dual classical higher-spin multicopy},
  author = {Nikita Misuna and Dmitry Ponomarev and Alexander Solomin},
  journal= {arXiv preprint arXiv:2604.13646},
  year   = {2026}
}

Comments

9 pages, v3 typos corrected

R2 v1 2026-07-01T12:10:24.175Z