4 papers
Gravitational wave cosmology
Ligong Bian, Rong-Gen Cai, Yu-Qi Dong +18
Gravitational waves (GWs) originating from cosmological sources offer direct insights into the physics of the primordial Universe, the fundamental nature of gravity, and the cosmic…
Generic effective sources for first-order in mass-ratio gravitational self-force calculations in Schwarzschild spacetime
Chao Zhang, Rong-gen Cai, Guoyang Fu +3
The numerical calculation of gravitational self-force in extreme mass ratio inspiral systems is fundamentally challenging due to the singular nature of point-particle sources. To o…
Null tests with Gaussian Process
Shengqing Gao, Qing Gao, Yungui Gong +1
We investigate the null tests of spatial flatness and the flat CDM model using the Baryon Acoustic Oscillation (BAO) data measured by the Dark Energy Spectroscopic Instrument (D…
On the evidence of dynamical dark energy
Qing Gao, Zhiqian Peng, Shengqing Gao +1
To elucidate the robustness of the baryon acoustic oscillation (BAO) data measured by the Dark Energy Spectroscopic Instrument (DESI) in capturing the dynamical behavior of dark en…