221 citations · 1.6k across the 76 of their papers we have counts for
7 papers · 1 filter
High-order matrix method with delimited expansion domain
Kai Lin, Wei-Liang Qian
Motivated by the substantial instability of the fundamental and high-overtone quasinormal modes, recent developments regarding the notion of black hole pseudospectrum call for nume…
Qusinormal oscillations and late-time tail of massless scalar perturbations of a magnetized black hole in Rastall gravity
Cai-Ying Shao, Yu-Jie Tan, Cheng-Gang Shao +2
In this paper, we study the quasinormal mode and late-time tail of charged massless scalar perturbations of a black hole in the generalized Rastall gravity. The black hole metric i…
Dynamic generation or removal of a scalar hair
Yunqi Liu, Cheng-Yong Zhang, Wei-Liang Qian +2
We study dynamic processes through which the scalar hair of black holes is generated or detached in a theory with a scalar field non-minimally coupled to Gauss-Bonnet and Ricci sca…
Echoes of axial gravitational perturbations in stars of uniform density
Kai Lin, Wei-Liang Qian
This work investigates the echoes in axial gravitational perturbations in compact objects. To this end, we propose an alternative scheme of the finite difference method implemented…
Ellis drainhole solution in Einstein-Æther gravity and the axial gravitational quasinormal modes
Kai Lin, Wei-Liang Qian
In this work, the Ellis drainhole solution is derived in Einstein-Æther gravity, and subsequently, the axial quasinormal modes of the resulting drainhole are investigated. Owing to…
Matrix method for perturbed black hole metric with discontinuity
Shui-Fa Shen, Wei-Liang Qian, Kai Lin +2
Recent studies based on the notion of black hole pseudospectrum indicated substantial instability of the fundamental and high-overtone quasinormal modes. Besides its theoretical no…