3 papers
gr-qc2026
Scalar perturbations and strong cosmic censorship in a regular ABGB-de Sitter black hole spacetime
Hang Liu, Hong Guo
We investigate the quasinormal modes (QNMs) of scalar perturbations and strong cosmic censorship (SCC) in regular Ayón-Beato-GarcÃa-Bronnikov-de Sitter (ABGB-dS) black hole space…
gr-qc2025
Scalar-hairy AdS Black Hole in the Einstein-Maxwell-Scalar Theory: first-order phase transition with a critical point
Hong Guo, Hang Liu, Yun Soo Myung
In asymptotically anti-de Sitter (AdS) spacetime, we consider a real massiver scalar field in the Einstein-Maxwell-scalar (EMS) model and examine both scalar-hairy black hole solut…
gr-qc2025
Quasibound States and Superradiant Instability of Black Hole in Analog Gravity
Hang Liu, Hong Guo
In this paper, we adopt continued fraction method (CFM) associated with VBK approach, which is recently developed by Vieira, Bezerra and Kokkotas, to investigate the spectrum of qu…