3 papers
gr-qc2026
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…
gr-qc2025
Parity-violating corrections to the orbital precession of binary system
Jin Qiao, Qing-Guo Huang, Tao Zhu +1
In this work, we test for gravitational parity violation in the PSR J1141-6545 system by analyzing the orbital plane inclination precession induced by the misalignment between the…
gr-qc2025
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…