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gr-qc2026
Convexity criterion and radial-profile response for off-shell Kerr geometries: a fuzzy-dark-matter profile as an analytic benchmark
Jingxu Wu, Jie Shi, Liangyu Luo
We establish a sufficient one-minimum criterion for the off-shell Kerr family with a positive, nondecreasing mass profile , showing that $1 - 2m'(…
gr-qc2026
EMRI Dephasing from a Torsion-Inspired Near-Zone Kerr Deformation: Motivated by Spin-Polarized Dark Matter
Jingxu Wu, Liangyu Luo, Daniil Stepanenko +1
Extreme-mass-ratio inspirals (EMRIs) are sensitive probes of weak conservative perturbations in the strong-field region of massive black holes. We study a phenomenological EMRI mod…
gr-qc2026
Analytical derivation of long-term dephasing caused by phase transitions in the context of Kerr black holes
Jingxu Wu, Liangyu Luo, Jie Shi
Extreme Mass Ratio Inspirals (EMRIs) constitute a prime target for future space-based gravitational-wave observatories such as LISA. In this paper, we analytically investigate the…