Showing gr-qcShow all
3 papers · 1 filter
gr-qc2026
Lorentz-Violating (Regular) Black Holes in Einstein Gravity
Zhi-Chao Li, H. Lu
We introduce a minimally coupled dark sector based on a nonlinear electrodynamics to generate regular spacetime textures that interpolate from a regular core to an asymptotic Loren…
gr-qc2026
When Bumblebee Meets NLED: Lorentz-Violating Black Holes and Regular Spacetimes
Zhi-Chao Li, H. Lu
We construct charged black hole solutions in bumblebee gravity coupled to a general class of nonlinear electrodynamics (NLED) using an auxiliary Maxwell-scalar formalism. The norm-…
gr-qc2026
Matter Maps to Geometry in Gravitational Collapse
H. Khodabakhshi, Zhi-Chao Li, H. Lu +1
We establish an exact bidirectional map between the effective homogeneous interior density of a collapsing star and the exterior metric function in generalized Oppenheimer--Snyder…