Détail du document
Identifiant
oai:arXiv.org:2501.11071
Sujet
General Relativity and Quantum Cos... Astrophysics - Cosmology and Nonga... High Energy Physics - Phenomenolog...Auteur
Zhang, Jing-Rui Chen, Ju Jiao, Heng-Sen Cai, Rong-Gen Zhang, Yun-LongCatégorie
sciences : astrophysique
Année
2025
Date de référencement
29/01/2025
Mots clés
ultralight matter dark detectors spin-2Résumé
Spin-2 ultralight dark matter (ULDM) is a viable dark matter candidate and it can be constrained using gravitational wave (GW) observations.
In this paper, we investigate the detectability of spin-2 ULDM by space-based GW interferometers.
By considering a direct coupling between spin-2 ULDM and ordinary matter, we derive the corresponding response functions and sensitivity curves for various time-delay interferometry channels and calculate the optimal sensitivity curves for future millihertz GW detectors.
Our results demonstrate that the space-based detectors can place stringent constraints on the coupling constant of spin-2 ULDM, reaching $\alpha \sim 10^{-10}$ around a mass of $m \sim 10^{-17} \rm eV$, surpassing current limits from ground-based detectors and pulsar timing arrays.
Thus, the space-based GW detectors can serve as powerful tools not only for detecting GWs but also for probing fundamental properties of ultralight dark matter.
;Comment: 12 pages, 6 figures
Zhang, Jing-Rui,Chen, Ju,Jiao, Heng-Sen,Cai, Rong-Gen,Zhang, Yun-Long, 2025, Probing Spin-2 Ultralight Dark Matter with Space-based Gravitational Wave Detectors in Millihertz
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