8 citations · 18 across the 4 of their papers we have counts for
5 papers · 1 filter
Gravitational-Bumblebee perturbations: Exact decoupling and isospectrality
Hui-Fa Liu, Wentao Liu, Yu-Xiao Liu +2
In this paper, we present the exact decoupling of the full metric and bumblebee field perturbations in a Schwarzschild-like background. The coupled system reduces to four decoupled…
Quasinormal modes of Reissner-Nordström-AdS black holes under physical field-vanishing boundary conditions
Hui-Fa Liu, Qi Su, Ding-fang Zeng
Boundary conditions play a key role in determining the perturbation behavior of a black hole. Motivated by two guiding principles for single-field perturbations -- the non-deformat…
Master functions of Reissner-Nordstrom black hole perturbations and their Darboux transformation
Hui-Fa Liu, Ding-fang Zeng
Lenzi and Sopuerta developed a new method to construct master functions for the perturbation of vacuum black holes. We extend this method to black holes coupled with electromagneti…
A Komar-like integral for mass and angular momentum of asymptotically AdS black holes in Einstein gravity
Jun-Jin Peng, Chang-Li Zou, Hui-Fa Liu
The purpose of this paper is to enhance the conventional Komar integral to asymptotically anti-de Sitter (AdS) black holes. In order to do so, we first obtain a potential that is t…
A new formula for conserved charges of Lovelock gravity in AdS spacetimes and its generalization
Jun-Jin Peng, Hui-Fa Liu
Within the framework of the Lovelock gravity theory, we propose a new rank-four divergenceless tensor consisting of the Riemann curvature tensor and inheriting its algebraic symmet…