Paper
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
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Raw Data (Debug)
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"raw_xml": "<entry>\n <id>http://arxiv.org/abs/2603.23634v1</id>\n <title>Testing Dark Energy with Black Hole Ringdown</title>\n <updated>2026-03-24T18:20:49Z</updated>\n <link href='https://arxiv.org/abs/2603.23634v1' rel='alternate' type='text/html'/>\n <link href='https://arxiv.org/pdf/2603.23634v1' rel='related' title='pdf' type='application/pdf'/>\n <summary>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.</summary>\n <category scheme='http://arxiv.org/schemas/atom' term='gr-qc'/>\n <published>2026-03-24T18:20:49Z</published>\n <arxiv:comment>5 pages + appendices and references, 4 figures</arxiv:comment>\n <arxiv:primary_category term='gr-qc'/>\n <author>\n <name>Laurens Smulders</name>\n </author>\n <author>\n <name>Johannes Noller</name>\n </author>\n <author>\n <name>Sergi Sirera</name>\n </author>\n </entry>"
}