2015/11/23 by Sarani Chakrabortya, A. Sen, Chakrabortya, Sarani +1
Physics and Astronomy · #Advanced Fiber Laser Technologies #Experimental and Theoretical Physics Studies #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Orbital Angular Momentum in Optics
paper · pdf · doi:10.48550/arxiv.1511.07355
openalex publication_date 2015/11/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
According to General Relativity, there are three factors namely mass, rotation and charge that can influence the path of light ray. Many authors showed that there is another factor which can influence the path of light ray namely gravitomagnetism. Here we discuss the effect of a rotating body with non-zero (Kerr- Taub-NUT) magnetic field on the motion of light ray. We use the null geodesic of photon method and obtain the deflection angle of light ray for such a body up to fourth order term in the equatorial plane. Our calculation shows that magnetism has a noticeable effect on the path of light ray. If we set the magnetism equal to zero, our expression of bending angle reduces to the Kerr bending angle. However, we get non-zero bending angle for a hypothetical mass less, magnetic body.