Recursive relations from diffeomorphism in the Randall-Sundrum model

Haiying Cai; Giacomo Cacciapaglia

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arXiv · 2604.02294

Recursive relations from diffeomorphism in the Randall-Sundrum model

Haiying Cai·Giacomo Cacciapaglia

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Abstract

Models of gravity in warped extra dimensions enjoy invariance under diffeomorphism. We derive the nonlinear transformation rules for the metric perturbations in the unitary gauge. As an off-shell symmetry, the main consequence of diffeomorphism is a set of recursive relations linking consecutive orders in the field expansion of the effective Lagrangian. The physical consequences are briefly explored for the Randall-Sundrum model with hard branes.

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Haiying Cai, Giacomo Cacciapaglia. 2026-04-02. Recursive relations from diffeomorphism in the Randall-Sundrum model. https://arxiv.org/abs/2604.02294

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