3 papers
gr-qc2026
Light deflection in general static and spherically symmetric spacetime with a homogeneous plasma
Guanming Li, Zhongze Li, Junji Jia
We developed in this work a perturbative technique to compute the deflection angle of light rays in general static and spherically symmetric spacetimes with a homogeneous non-magne…
gr-qc2024
Generating New Spacetimes through Zermelo Navigation
Zonghai Li, Junji Jia
Zermelo navigation is not only a fundamental tool in Finsler geometry but also a fundamental approach to the geometrization of dynamics in physics. In this paper, we consider the Z…
gr-qc2023
Deflection of charged signals in a dipole magnetic field in Kerr background
Zonghai Li, Junji Jia
This paper investigates charged particle deflection in a Kerr spacetime background with a dipole magnetic field, focusing on the equatorial plane and employing the weak field appro…