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Paper

TESTING March 24, 2026

Testing Dark Energy with Black Hole Ringdown

Authors

Laurens Smulders, Johannes Noller, Sergi Sirera

Abstract

We show that dynamical dark energy theories can imprint $O(1)$ modifications on the quasi-normal mode (QNM) spectrum characterising black hole ringdown. The time dependence of dynamical dark energy naturally gives rise to cosmological 'hair' around a black hole. Taking the cubic Galileon as a concrete example, which admits the only known stable solution of this kind, we parametrically connect the cosmological and black hole regimes, derive the induced QNM shifts and forecast the resulting dark energy constraints. We find that the dark energy field profile can be constrained with an accuracy of up to $10^{-2}$ for LVK and $10^{-4}$ for LISA.

Metadata

arXiv ID: 2603.23634
Provider: ARXIV
Primary Category: gr-qc
Published: 2026-03-24
Fetched: 2026-03-26 06:02

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Raw Data (Debug)
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