Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Weak Deflection Angle of Black-bounce Traversable Wormholes Using Gauss-Bonnet Theorem in the Dark Matter Medium

Version 1 : Received: 23 August 2020 / Approved: 24 August 2020 / Online: 24 August 2020 (08:14:48 CEST)

A peer-reviewed article of this Preprint also exists.

Journal reference: Turkish Journal of Physics 2020, 44, 465
DOI: 10.3906/fiz-2008-11


In this paper, first we use the optical metrics of black-bounce traversable wormholes to calculate the Gaussian curvature. Then we use the Gauss-Bonnet theorem to obtain the weak deflection angle of light from the black-bounce traversable wormholes. Then we investigate the effect of dark matter medium on weak deflection angle using the Gauss-Bonnet theorem. We show how weak deflection angle of wormhole is affected by the bounce parameter $a$. Using the Gauss-bonnet theorem for calculating weak deflection angle shows us that light bending can be thought as a global and topological effect.


relativity and gravitation; gravitational lensing; deflection angle; wormholes; Gauss-Bonnet theorem


PHYSICAL SCIENCES, General & Theoretical Physics

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0

Notify me about updates to this article or when a peer-reviewed version is published.

We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.