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gr-qc2023
Refinements and corrections to the deflection angle of light in Kerr-de Sitter spacetime
Yang Huang, Xiangyun Fu
The deflection angle of equatorial light (the light in the equatorial plane) in Kerr-de Sitter (KdS) spacetime was previously calculated by Sultana [\href{https://journals.aps.org/…
gr-qc2023★ 18 cited
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…