2020/04/30 by Songbai Chen, Mingzhi Wang, Jiliang Jing · 50 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Birefringence #Black hole (networking) #Electromagnetic field #Extremal black hole #Photon #Photon polarization #Polarization (electrochemistry) #Quantum Electrodynamics and Casimir Effect #Relativity and Gravitational Theory #Rotating black hole #gr-qc
paper · pdf · doi:10.1007/jhep07(2020)054
published in Journal of High Energy Physics 2020(7) (Springer Nature) · 16 pages, 8 figures. Some references are added and accepted for pubication in JHEP
openalex created_date 2020/04/24 · arxiv created 2020/06/16 · openalex publication_date 2020/07/01 · arxiv updated 2020/07/30 · openalex updated_date 2026/08/06
A bstract We present firstly the equation of motion for the photon coupled to a special bumblebee vector field in a Kerr black hole spacetime and find that the propagation of light depends on its polarization due to the birefringence phenomenon. The dependence of black hole shadow on the light's polarization is dominated by the rotation of black hole. In the non-rotating case, we find that the black hole shadow is independent of the polarization of light. However, the status is changed in the rotating case, in which the black hole shadow depends on the light's polarization and the coupling between bumblebee vector field and electromagnetic field. These features of black hole shadow casted by polarized lights could help us to understand the bumblebee vector field with Lorentz symmetry breaking and its interaction with electromagnetic field.