Routing (electronic design automation)

Network packet

Quantum mechanics

Schwarzschild radius

Gravitation

Mathematical physics

Einstein

Metallurgy

Materials science

Bending

Computer security

Coupling (piping)

Astrophysics

Computer science

Classical mechanics

Computer network

Thermodynamics

Routing protocol

Deflection (physics)

Physics

Gauss–Bonnet theorem

Link-state routing protocol

Schwarzschild metric

Gauss

Anti-de Sitter space

Black hole (networking)

De Sitter universe

Universe

General relativity

EPL (Europhysics Letters)

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.

Bending of light in novel 4D Gauss-Bonnet-de Sitter black holes by the Rindler-Ishak method