TY - JOUR

T1 - Light deflection by a quantum improved Kerr black hole pierced by a cosmic string

AU - Jusufi, Kimet

AU - Ovgun, Ali

N1 - Funding Information:
This work was supported by the Chilean FONDECYT Grant No. 3170035 (AÖ).
Publisher Copyright:
© 2019 World Scientific Publishing Company.

PY - 2019/8/1

Y1 - 2019/8/1

N2 - In this work, we calculate the quantum correction effects on the deflection of light in the space-time 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.

AB - In this work, we calculate the quantum correction effects on the deflection of light in the space-time 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.

KW - Gauss-Bonnet theorem

KW - Gaussian optical curvature

KW - Quantum corrections

KW - light deflection

UR - http://www.scopus.com/inward/record.url?scp=85067830090&partnerID=8YFLogxK

U2 - 10.1142/S0219887819501160

DO - 10.1142/S0219887819501160

M3 - Article

AN - SCOPUS:85067830090

VL - 16

JO - International Journal of Geometric Methods in Modern Physics

JF - International Journal of Geometric Methods in Modern Physics

SN - 0219-8878

IS - 8

M1 - 1950116

ER -