53 citations · 138 across the 15 of their papers we have counts for
16 papers
Propagation and polarization of gravitational waves on curved spacetime backgrounds in Einstein-Æther theory
Yu-Qi Dong, Shinji Mukohyama, Yu-Xiao Liu
We analyze the propagation and polarization properties of high-frequency gravitational waves in Einstein-Æther theory on vorticity-free and slowly-varying backgrounds at both leadi…
Stability Analysis of Cosmological Perturbations in the Bumblebee Model: Parameter Constraints and Gravitational Waves
Xiao-Bin Lai, Yu-Qi Dong, Yu-Zhi Fan +1
We constrain the parameter space of the Bumblebee model in a cosmological background and then investigate the properties of gravitational waves within the constrained parameter spa…
Complexity equals anything for multi-horizon black holes
Hong-Yue Jiang, Yu-Xiao Liu
We investigate the ``complexity equals anything" proposal with codimension-one and codimension-zero gravitational observables for multi-horizon black holes, using the Bardeen-AdS c…
Polarization modes of gravitational waves in general symmetric teleparallel gravity
Yu-Qi Dong, Xiao-Bin Lai, Yu-Zhi Fan +1
In this paper, we investigate the polarization modes of gravitational waves within the most general symmetric teleparallel gravity theory that allows for second-order field equatio…
New gravitational wave polarization modes in the torsionless spacetime
Yu-Qi Dong, Xiao-Bin Lai, Yu-Zhi Fan +1
In this study, we investigate the polarization properties of gravitational waves within a torsionless spacetime framework, as described by the Palatini formalism. Our analysis unco…
Hereditary Effects and New Optical Properties of Nonlinear Gravitational Waves
Yu-Qiang Liu, Yu-Qi Dong, Yu-Xiao Liu
We investigate new optical effects of nonlinear gravitational waves that arise from hereditary effects. Firstly, we show that the amplitude of continuous plane waves has a heredita…
Polarization modes of gravitational waves in scalar-tensor-Rastall theory
Yu-Zhi Fan, Xiao-Bin Lai, Yu-Qi Dong +1
Rastall theory, originally introduced in 1972, suggests a violation of the usual conservation law. We consider two generalizations of Rastall theory: Brans-Dicke-Rastall theory and…
Gravitational-wave effects in the most general vector-tensor theory
Yu-Qi Dong, Xiao-Bin Lai, Yu-Qiang Liu +1
In this paper, we establish a model-independent framework based on the Isaacson picture to analyze the gravitational-wave effects in the most general vector-tensor theory that yiel…
Polarization modes of gravitational waves in general Einstein-vector theory
Xiao-Bin Lai, Yu-Qi Dong, Yu-Qiang Liu +1
We study the polarization modes of gravitational waves in general Einstein-vector theory with an arbitrary constant background vector field under a Minkowski background. We compare…
Quasinormal modes and greybody factor of a Lorentz-violating black hole
Wen-Di Guo, Qin Tan, Yu-Xiao Liu
Recently, a static spherically symmetric black hole solution was found in gravity nonminimally coupled a background Kalb-Ramond field. The Lorentz symmetry is spontaneously broken…
Polarization modes of gravitational waves in general modified gravity: General metric theory and general scalar-tensor theory
Yu-Qi Dong, Yu-Qiang Liu, Yu-Xiao Liu
In this paper, we establish a unified parameterized framework for analyzing the polarization modes of gravitational waves in the general metric theory (gravity is only described by…
Fate of initially bound timelike geodesics in spherical boson stars
Yu-Peng Zhang, Shi-Xian Sun, Yong-Qiang Wang +3
Boson stars are horizonless compact objects and they could possess novel geodesic orbits under the equilibrium assumption, which differ from those in black hole backgrounds. Howeve…
Polarization modes of gravitational waves in generalized Proca theory
Yu-Qi Dong, Yu-Qiang Liu, Yu-Xiao Liu
In this paper, we study polarization modes of gravitational waves in generalized Proca theory in the homogeneous and isotropic Minkowski background. The results show that the polar…
Gravitoelectromagnetic coupled perturbations and quasinormal modes of a charged black hole with scalar hair
Wen-Di Guo, Qin Tan, Yu-Xiao Liu
From the quantum point of view, singularity should not exist. Recently, Bah and Heidmann constructed a five-dimensional singularity free topology star/black hole [Phys. Rev. Lett.…
Constraining Palatini-Horndeski theory with gravitational waves after GW170817
Yu-Qi Dong, Yu-Qiang Liu, Yu-Xiao Liu
In this paper, we investigate the possible parameter space of Palatini-Horndeski theory with gravitational waves in a spatially flat Universe. We find that if the theory satisfies…
Classification of Gravitational Waves in Higher-dimensional Space-time and Possibility of Observation
Yu-Qiang Liu, Yu-Qi Dong, Yu-Xiao Liu
The direct detection of gravitational waves opens the possibility to test general relativity and its alternatives in the strong field regime. Here we focus on the test of the exist…