5 papers · 1 filter
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-García-Bronnikov-de Sitter (ABGB-dS) black hole spaceti…
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…
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…
Massive Scalar Perturbations and Quasi-Resonance of Rotating Black Hole in Analog Gravity
Hang Liu, Hong Guo
It was reported that the optical field fluctuations in self-defocusing media can be described by sound waves propagating in a two-dimensional photon-fluid which is controlled by th…
Quasinormal Modes of Analog Rotating Black Holes in 2-Dimensional Photon-Fluid Model
Hang Liu, Hong Guo, Ru Ling
It was recently found that the optical field fluctuations in self-defocusing media can be described by sound waves propagating in a two-dimensional photon-fluid. This photon-fluid…