5 papers
Continued fraction method for high overtone quasinormal modes in effective potentials with discontinuity
Guan-Ru Li, Jodin C. Morey, Wei-Liang Qian +4
In this study, we extend Leaver's continued fraction method to evaluate black hole quasinormal modes (QNMs) in systems where the effective potential exhibits a discontinuity. Besid…
Echoes of bimodal axial gravitational perturbations in a uniform-density star in Einstein-Æther gravity
Kai Lin, Wei-Liang Qian, Alan B. Pavan +2
This paper studies axial gravitational perturbations of a uniform-density star in scalar-Einstein-Æther theory. By applying the Israel junction conditions explicitly in the presenc…
Two distinct types of echoes in compact objects
Shui-Fa Shen, Kai Lin, Tao Zhu +3
In the black hole perturbation theory framework, two different physical pictures for echoes in compact objects have been proposed. The first mechanism interprets echoes as repeated…
Standing wave in perturbed anti-de Sitter spacetimes with a naked singularity
Kai Lin, Wei-Liang Qian
In the framework of black hole perturbation theory, this work investigates the standing wave solutions in Reissner-Nordtsröm (RN) anti-de Sitter (AdS) spacetimes with a naked singu…
On partition temperature of massless particles in high-energy collisions
Wei-Liang Qian, Kai Lin, Rui-Hong Yue +2
Although partition temperature derived using the Darwin-Fowler method is exact for simple scenarios, the derivation for complex systems might reside on specific approximations whos…