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arXiv · 2510.02515

Neural Post-Einsteinian Test of General Relativity with the Third Gravitational-Wave Transient Catalog

Yiqi Xie·Gautham Narayan·Nicolás Yunes
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Abstract

Gravitational waves (GWs) from compact binaries are excellent probes of gravity in the strong- and dynamical-field regimes. We report a test of general relativity (GR) with the third GW Transient Catalog (GWTC-3) plus a few O4 events using the recently developed neural post-Einsteinian framework, both on individual events and at the population level through hierarchical modeling. We find no significant violation of GR and place a constraint that, for the first time, efficiently covers non-GR theories characterized by not only post-Newtonian deviations but also those beyond under the same theory-agnostic framework.

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Yiqi Xie, Gautham Narayan, Nicolás Yunes. 2025-10-02. Neural Post-Einsteinian Test of General Relativity with the Third Gravitational-Wave Transient Catalog. https://doi.org/10.1103/n1pb-jt1n

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