Self-dual classical higher-spin multicopy

Nikita Misuna; Dmitry Ponomarev; Alexander Solomin

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arXiv · 2604.13646

Self-dual classical higher-spin multicopy

Nikita Misuna·Dmitry Ponomarev·Alexander Solomin

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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.

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Nikita Misuna, Dmitry Ponomarev, Alexander Solomin. 2026-04-15. Self-dual classical higher-spin multicopy. https://arxiv.org/abs/2604.13646

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