Light Deflection by a Quantum Improved Kerr Black Hole Pierced by a Cosmic String

Abstract

In this work, we calculate the quantum correction effects on the deflection of light in the spacetime geometry of a quantum improved Kerr black hole pierced by an infinitely long cosmic string. More precisely, we calculate the deflection angle by applying the Gauss--Bonnet theorem (GBT) to the osculating optical geometries related to the quantum improved rotating black hole in the weak limit approximation. We find that the deflection angle of light is affected by the quantum effects as well as the global topology due to the presence of the cosmic string. Besides, we have managed to find the same expression for the deflection angle in leading order terms using the geodesic equations.

Accepted to publish in International Journal of Geometric Methods in Modern Physics

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• Testing Generalized Einstein-Cartan-Kibble-Sciama Gravity using Weak Deflection Angle and Shadow Cast
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• Effect of the hair on deflection angle by asymptotically flat black holes in Einstein-Maxwell-dilaton theory
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• Black hole in quantum wave dark matter
• Effect of the quintessential dark energy on weak deflection angle by Kerr-Newmann Black hole
• Gravitational deflection of relativistic massive particles by wormholes
• Weak Gravitational lensing by Bocharova-Bronnikov-Melnikov-Bekenstein black holes using Gauss-bonnet theorem
• Equivalence of Gibbons-Werner method to geodesics method in the study of gravitational lensing
• Weak deflection angle by Casimir wormhole using Gauss-bonnet theorem and its shadow
• Weak Gravitational lensing by stringy black holes
• Weak Deflection angle and Shadow by Tidal Charged Black Hole
• Probing Effective Loop Quantum Gravity on Weak Gravitational Lensing, Hawking Radiation and Bounding Greybody Factor by Black Holes
• Weak deflection angle by asymptotically flat black holes in Horndeski theory using Gauss-Bonnet theorem
• Generalized Gibbons-Werner method for stationary spacetimes
• Finite-distance gravitational deflection of massive particles by a rotating black hole in loop quantum gravity
• Weak Deflection angle of some classes of non-linear electrodynamics black holes via Gauss-Bonnet Theorem
• Effect of null aether field on weak deflection angle of black holes
• Weak gravitational lensing by Einstein-non-linear-Maxwell-Yukawa black hole
• Extending Gibbons-Werner method to bound orbits of massive particles
• Testing new massive conformal gravity with the light deflection by black hole