4 papers · 1 filter
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'(…
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…
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…
From Thermodynamic Criticality to Geometric Criticality: A Linear Kernel Map from Matter Susceptibilities to Black-Hole Shadows
Jingxu Wu, Jie Shi, Chenjia Li +1
We construct an explicit linear map from compact, conserved thermodynamic/effective-medium perturbations of the stress-energy tensor to the metric response in static, spherically s…