Weak deflection angle of black-bounce traversable wormholes using Gauss-Bonnet theorem in the dark matter medium

ALI OVGUN

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In this paper, we first 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. 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.

Original languageEnglish
Pages (from-to)465-471
Number of pages7
JournalTurkish Journal of Physics
Volume44
Issue number5
DOIs
StatePublished - 2020
Externally publishedYes

Keywords

  • Deflection angle
  • Gauss-Bonnet theorem
  • Gravitational lensing
  • Relativity and gravitation
  • Wormholes

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