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arXiv · 2606.29625

Metric-like Cubic Vertices for Massless Bosonic Higher-Spin Fields in AdS$_3$

Freddie King·Taylor Pomfret·Karapet Mkrtchyan
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Abstract

We derive parity-even transverse-traceless metric-like cubic vertices for massless bosonic higher-spin fields in AdS$_3$. Starting from the known two- and three-derivative vertices in three-dimensional flat space, we construct their AdS$_3$ extensions by imposing gauge invariance and accounting for dimension-dependent identities. The result is shown to be consistent with minimal coupling to gravity.

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Freddie King, Taylor Pomfret, Karapet Mkrtchyan. 2026-06-28. Metric-like Cubic Vertices for Massless Bosonic Higher-Spin Fields in AdS$_3$. https://arxiv.org/abs/2606.29625

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