29 citations · 67 across the 18 of their papers we have counts for
13 papers · 1 filter
Tests of general relativity at the fourth post-Newtonian order with GW230627 and GW250114
Xi-Min Liang, Yuan-Zhu Wang, Tao Zhu +2
Gravitational wave (GW) observations provide an unprecedented laboratory for testing general relativity (GR) in the strong-field, highly dynamic, and relativistic regimes. Within t…
pespace: A new tool of GPU-accelerated and auto-differentiable response generation and likelihood evaluation for space-borne gravitational wave detectors
Rui Niu, Chang Feng, Wen Zhao
Space-borne gravitational wave detectors will expand the scope of gravitational wave astronomy to the milli-Hertz band in the near future. The development of data analysis software…
Modified gravitational wave propagations in linearized gravity with Lorentz and diffeomorphism violations and their gravitational wave constraints
Qiang Wang, Jian-Ming Yan, Tao Zhu +1
The standard model extension (SME) is an effective field theory framework that can be used to study the possible violations of Lorentz symmetry and diffeomorphism invariance in the…
Schwarzschild Lensing From Geodesic Deviation
Zhao Li, Xiao Guo, Tan Liu +2
We revisit the gravitational lensing of light or gravitational waves by Schwarzschild black hole in geometric optics. Instead of a single massless particle, we investigate the coll…
Forecast Analysis of Astrophysical Stochastic Gravitational Wave Background beyond general relativity: A Case Study on Brans-Dicke Gravity
Ran Chen, Zhao Li, Yin-Jie Li +4
Scalar-tensor gravity, exemplified by Brans-Dicke (BD) gravity, introduces additional scalar polarization modes that contribute scalar radiation alongside tensor modes. We conduct…
Extracting overlapping gravitational-wave signals of galactic compact binaries: a mini review
Rui Niu, Wen Zhao
Gravitational wave (GW) observations have provided a novel tool to explore the universe. In the near future, space-borne detectors will further open the window of low-frequency GW…
Constraining the modified friction in gravitational wave propagation with precessing black hole binaries
Chunbo Lin, Tao Zhu, Rui Niu +1
A broad class of modified gravities can result in a modified friction effect in the propagation of gravitational waves (GWs). This effect changes the amplitude-damping rate of GWs…
Power spectra and circular polarization of primordial gravitational waves with parity and Lorentz violations
Tian-Chen Li, Tao Zhu, Wen Zhao +1
The violations of parity and Lorentz symmetries in gravity can change the propagating properties of gravitational waves (GWs) in the cosmological background, which can arise from a…
The Multi-parameter Test of Gravitational Wave Dispersion with Principal Component Analysis
Zhi-Chu Ma, Rui Niu, Wen Zhao
In this work, we consider a conventional test of gravitational wave (GW) propagation which is based on the phenomenological parameterized dispersion relation to describe potential…
Multi-parameter Tests of General Relativity Using Bayesian Parameter Estimation with Principal Component Analysis for LISA
Rui Niu, Zhi-Chu Ma, Ji-Ming Chen +2
In the near future, space-borne gravitational wave (GW) detector LISA can open the window of low-frequency band of GW and provide new tools to test gravity theories. In this work,…
Gravitational Radiation from Eccentric Binary Black Hole System in Dynamical Chern-Simons Gravity
Zhao Li, Jin Qiao, Tan Liu +4
Dynamical Chern-Simons (DCS) gravity, a typical parity-violating gravitational theory, modifies both the generation and propagation of gravitational waves from general relativity (…
Testing Lorentz Invariance of Gravity in the Standard Model Extension with GWTC-3
Rui Niu, Tao Zhu, Wen Zhao
Successful detection of gravitational waves has presented a new avenue to explore the nature of gravity. With the cumulative catalog of detected events, we can perform tests on Gen…
Gravitational waves from the quasi-circular inspiral of compact binaries in Einstein-aether theory
Chao Zhang, Xiang Zhao, Anzhong Wang +5
We study gravitational waves emitted by a binary system of non-spinning bodies in a quasi-circular inspiral within the framework of Einstein-aether theory. In particular, we comput…