3 papers
gr-qc2026
Black Holes Trapped by Ghosts
Cheng-Yong Zhang, Yunqi Liu, Bin Wang
Violent cosmic events, from black hole mergers to stellar collapses, often leave behind highly excited black hole remnants that inevitably relax to equilibrium. The prevailing view…
gr-qc2024
Nonlinear Evolution of unstable Charged de Sitter Black Holes with Hyperboloidal Formalism
Zhen-Tao He, Qian Chen, Yu Tian +2
Based on the hyperboloidal framework, we research the dynamical process of charged de Sitter black holes scattered by a charged scalar field. From the linear perturbation analysis,…
gr-qc2024
Nonlinear self-interaction induced black hole bomb
Cheng-Yong Zhang, Qian Chen, Yuxuan Liu +3
We present the first alternative mechanisms to trigger black hole bomb phenomena beyond the famous superradiant instability. By incorporating nonlinear self-interaction into the ma…