Weak Deflection Angle by Kalb–Ramond Traversable Wormhole in Plasma and Dark Matter Mediums
Wajiha JavedDepartment of Mathematics, Division of Science and Technology, University of Education, Lahore 54590, PakistanHafsa IrshadDepartment of Mathematics, Division of Science and Technology, University of Education, Lahore 54590, PakistanReggie C. PantigPhysics Department, De La Salle University, 2401 Taft Avenue, Manila 1004, PhilippinesAli ÖvgünPhysics Department, Eastern Mediterranean University, North Cyprus via Mersin 10, Famagusta 99628, Turkey
2022en
ABI
Abstract
This paper is devoted to computing the weak deflection angle for the Kalb–Ramond traversable wormhole solution in plasma and dark matter mediums by using the method of Gibbons and Werner. To acquire our results, we evaluate Gaussian optical curvature by utilizing the Gauss–Bonnet theorem in the weak field limits. We also investigate the graphical influence of the deflection angle α˜ with respect to the impact parameter σ and the minimal radius r0 in the plasma medium. Moreover, we derive the deflection angle by using a different method known as the Keeton and Petters method. We also examine that if we remove the effects of plasma and dark matter, the results become identical to that of the non-plasma case.
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