203 citations · 2.5k across the 82 of their papers we have counts for
84 papers
Null test of general relativity based on gravitational waves
Dawen Chen, Zeyuan Kang, Zhoujian Cao
Several hundreds of gravitational wave events have been detected. They are good tools to investigate various fundamental problems, including tests of general relativity (GR) theory…
Solving Hamiltonian Constraint Equation with Physics-Informed Neural Networks
Yu-Chen Zhou, Hao Ma, Zhoujian Cao +6
Numerical relativity (NR), solving Einstein equation numerically, plays an important role in source modelling for gravitational wave astronomy. Traditional methods for NR including…
Eccentricity enables the earliest warning and localization of gravitational waves with ground-based detectors
Tao Yang, Rong-Gen Cai, Zhoujian Cao +1
The early and precise localization of gravitational waves (GWs) is pivotal in detecting their electromagnetic (EM) counterparts, especially for binary neutron stars (BNS) and neutr…
Including higher harmonics in gravitational-wave parameter estimation and cosmological implications for LISA
Yi Gong, Zhoujian Cao, Junjie Zhao +1
Massive black holes (MBHs) are crucial in shaping their host galaxies. How the MBH co-evolves with its host galaxy is a pressing problem in astrophysics and cosmology. The valuable…
Dilated convolutional neural network for detecting extreme-mass-ratio inspirals
Tianyu Zhao, Yue Zhou, Ruijun Shi +2
The detection of Extreme Mass Ratio Inspirals (EMRIs) is intricate due to their complex waveforms, extended duration, and low signal-to-noise ratio (SNR), making them more challeng…
Influence of dark matter equation of state on the axial gravitational ringing of supermassive black holes
Yuqian Zhao, Bing Sun, Zhoujian Cao +2
In this work, we explore the effects of surrounding dark matter featuring different equations of state on the axial gravitational quasinormal modes of supermassive black holes situ…
Probe the gravitational constant variation via the propagation of gravitational waves
Bing Sun, Jiachen An, Zhoujian Cao
The gravitational constant variation means the breakdown of the strong equivalence principle. As the cornerstone of general relativity, the validity of general relativity can be ex…
The effect of the gravitational constant variation on the propagation of gravitational waves
Jiachen An, Yadong Xue, Zhoujian Cao +2
Since the first detection of gravitational waves, they have been used to investigate various fundamental problems, including the variation of physical constants. Regarding the grav…
Upgraded waveform model of eccentric binary black hole based on effective-one-body-numerical-relativity for spin-aligned binary black holes
Xiaolin Liu, Zhoujian Cao, Lijing Shao
Effective one body numerical relativity waveform models for spin aligned binary black holes (SEOBNR) are based on the effective one body theoretical framework and numerical relativ…
Post-Keplerian waveform model for binary compact object as sources of space-based gravitational wave detector and its implications
Li-Fang Li, Zhoujian Cao
Binary compact objects will be among the important sources for the future space-based gravitational wave detectors. Such binary compact objects include stellar massive binary black…
Generalized Gibbons-Werner method for stationary spacetimes
Yang Huang, Zhoujian Cao, Zhenyan Lu
The Gibbons-Werner (GW) method is a powerful approach in studying the gravitational deflection of particles moving in curved spacetimes. The application of the Gauss-Bonnet theorem…
The Axial Gravitational Ringing of a Spherically Symmetric Black Hole Surrounded by Dark Matter Spike
Yuqian Zhao, Bing Sun, Kai Lin +1
Supermassive black holes at the center of each galaxy may be surrounded by dark matter. Such dark matter admits a spike structure and vanishes at a certain distance from the black…
Lorentz transformation of three dimensional gravitational wave tensor
Xiaokai He, Xiaolin Liu, Zhoujian Cao
Recently there are more and more interest on the gravitational wave of moving sources. This introduces a Lorentz transformation problem of gravitational wave. Although Bondi-Metzne…
Accurate calculation of gravitational wave memory
Xiaolin Liu, Xiaokai He, Zhoujian Cao
Gravitational wave memory is an important prediction of general relativity. The detection of the gravitational wave memory can be used to test general relativity and to deduce the…
Measuring mass transfer of AM CVn binaries with a space-based gravitational wave detector
Zijian Wang, Zhoujian Cao, Xian-Fei Zhang
The formation mechanism of AM CVn binary has not been well understood yet. Accurate measurements of the mass transfer rate can help to determine the formation mechanism. But unfort…
Taiji Data Challenge for Exploring Gravitational Wave Universe
Zhixiang Ren, Tianyu Zhao, Zhoujian Cao +4
The direct observation of gravitational waves (GWs) opens a new window for exploring new physics from quanta to cosmos and provides a new tool for probing the evolution of universe…
WaveFormer: transformer-based denoising method for gravitational-wave data
He Wang, Yue Zhou, Zhoujian Cao +2
With the advent of gravitational-wave astronomy and the discovery of more compact binary coalescences, data quality improvement techniques are desired to handle the complex and ove…
Parameter estimation of eccentric gravitational waves with a decihertz observatory and its cosmological implications
Tao Yang, Rong-Gen Cai, Zhoujian Cao +1
Eccentricity of compact binaries can improve the parameter estimation of gravitational waves (GWs). In this paper, we first investigate the parameter estimation of eccentric GWs wi…
Finite-distance gravitational deflection of massive particles by a rotating black hole in loop quantum gravity
Yang Huang, Zhoujian Cao
A rotating black hole in loop quantum gravity was constructed by Brahma, Chen, and Yeom based on a nonrotating counterpart using the revised Newman-Janis algorithm recently. For su…
Extending Gibbons-Werner method to bound orbits of massive particles
Yang Huang, Bing Sun, Zhoujian Cao
The Gibbons-Werner method for the gravitational deflection angle of unbound particles in static spherically symmetric spacetimes is based on Jacobi metric and Gauss-Bonnet theorem.…
Quasi Normal Modes of Black Holes and Detection in Ringdown Process
Yuqian Zhao, Bing Sun, Zhan-Feng Mai +1
Quasi-normal modes (QNMs) of a black hole (BH) are the eigen modes describing the dissipative oscillation of various fields in that spacetime, which can be intrinsically produced b…
Gravitational wave memory produced by cosmic background radiation
Zhoujian Cao, Xiaokai He, Zhi-Chao Zhao
It is well known that energy fluxes will produce gravitational wave memory. The gravitational wave memory produced by background including cosmic microwave background (CMB), cosmic…
MLGWSC-1: The first Machine Learning Gravitational-Wave Search Mock Data Challenge
Marlin B. Schäfer, Ondřej Zelenka, Alexander H. Nitz +20
We present the results of the first Machine Learning Gravitational-Wave Search Mock Data Challenge (MLGWSC-1). For this challenge, participating groups had to identify gravitationa…
Simultaneous bounds on the gravitational dipole radiation and varying gravitational constant from compact binary inspirals
Ziming Wang, Junjie Zhao, Zihe An +2
Compact binaries are an important class of gravitational-wave (GW) sources that can be detected by current and future GW observatories. They provide a testbed for general relativit…