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arXiv · 2603.12332

Stable Black Strings from Warped Backgrounds

Sylvain Fichet·Eugenio Megias·Mariano Quiros·Geovanna Yamanaki
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Abstract

We show that spacetime curvature alone can classically stabilize black strings. Working within a consistent five-dimensional dilaton-gravity system with a flat brane, we find that sufficiently large black strings are classically stable when they extend from the brane to a timelike boundary, which may be either regular or conformal. Black strings are also classically stable in the critical case of the linear dilaton spacetime. In some of the curved backgrounds considered, black strings are stable despite having infinite horizon area.

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Sylvain Fichet, Eugenio Megias, Mariano Quiros, Geovanna Yamanaki. 2026-03-12. Stable Black Strings from Warped Backgrounds. https://arxiv.org/abs/2603.12332

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