Bending of light in novel 4D Gauss Bonnet de Sitter black holes by the Rindler Ishak method
We study the bending of light in the space time of black holes in the four dimensional Einstein Gauss Bonnet theory of gravity, recently proposed by Glavan and Lin in Phys. Rev. Lett. 124 (2020) 081301. Using the Rindler Ishak method, the effect of Gauss Bonnet coupling on the bending angle is studied. We show that a positive Gauss Bonnet coupling gives a negative contribution to the Schwarzschild de Sitter deflection angle, as one would expect.
EPL (Europhysics Letters)