Macroscopic Dark Matter Detection with Gravitational Wave Experiments

• DOI: 10.48550/arxiv.2306.13122
• Publication Date: 2023-01-01
• Authors: Yufeng Du; Vincent S. H. Lee; Yikun Wang; Kathryn M. Zurek
• Keywords: Einstein Telescope; Invariant mass

We study signatures of macroscopic dark matter (DM) in current and future gravitational wave (GW) experiments. Transiting DM with a mass $\sim10^5-10^{15}$ kg that saturates the local density can be potentially detectable by GW detectors, depending on baseline detector strength force mediating interaction. In context laser interferometers, we derive gauge invariant observable due to transiting DM, including Shapiro effect (gravitational time delay accumulated during photon propagation), adequately account for finite travel within an interferometer arm. particular, find dominant short-baseline interferometers such as Holometer GQuEST. also proposed experiments Cosmic Explorer Einstein Telescope constrain fifth between baryons, at level $\sim 10^3$ times stronger than gravity for, e.g., fifth-force range $10^6$ m.