Author

Dong-Jun Li

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Preprint Oct 2026

Curvature Reconstruction and Tensor Polarizations in Isospectrality-Breaking Black-Hole Perturbations

Testing general relativity with the ringdown phase of gravitational waves requires connecting modifications of black-hole perturbation dynamics to observable signatures in detector strain. In this work, we study the relation between curvature perturbations, metric master variables, and detector tensor polarizations for...

Pratik Wagle, Dong-Jun Li, Yan-Bei Chen et al. · 0 citations

Preprint Oct 2026

One Method to Find Them All: Analytic Black Holes beyond Einstein

Rotating black holes offer powerful probes of gravity, but constructing their geometries beyond vacuum general relativity remains challenging. Here we develop a unified framework for constructing stationary, axisymmetric deformations of Kerr from their tidal curvature and physical sources. As a demonstration, we obtain...

Dong-Jun Li, Jie-Rui Hu, Nicolás Yunes · 0 citations

Preprint Oct 2026

Modeling extreme mass-ratio inspirals in astrophysical and dark-matter environments

Extreme mass-ratio inspirals offer a powerful probe of massive black holes and their environments, but interpreting their signals requires accurate models of orbital dynamics and radiation. Here we bring together advances in black-hole perturbation theory to establish a unified relativistic framework for adiabatic insp...

Dong-Jun Li, Hao-Jui Kuan, Colin Weller et al. · 3 citations