https://doi.org/10.1140/epjc/s10052-024-12941-0
Regular Article – Theoretical Physics
Influence of quantum correction on the Schwarzschild black hole polarized image
1
College of Physics and Electronic Engineering, Chongqing Normal University, 401331, Chongqing, People’s Republic of China
2
Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, 530004, Nanning, People’s Republic of China
3
School of Physics and Astronomy, China West Normal University, 637000, Nanchong, People’s Republic of China
4
Hubei Subsurface Multi-scale Imaging Key Laboratory, School of Geophysics and Geomatics, China University of Geosciences, 430074, Wuhan, People’s Republic of China
Received:
18
April
2024
Accepted:
21
May
2024
Published online:
10
June
2024
Using a model of an accretion disk around a Schwarzschild black hole, the analytic estimates for image polarization were derived by Narayan et al. (Astrophys J 102:912, 2021). Recently, the EHT team also obtained polarization images of the Sgr A
and measured both linear and circular polarization (Astrophys J Lett 964:L25, 2024). We find that quantum correction effects can also influence polarization information. Considering the quantum corrected Schwarzschild black hole (Kazakov–Solodukhin black hole), we derive the polarization intensity of the target black hole and investigate polarization images under different parameters. It is found that a larger quantum deformation leads to an expansion of the polarization region, while the polarization intensity value decrease. Under different observation angles, magnetic fields, fluid direction angles, and fluid velocity conditions, we also derive polarization images of corrected black holes. These key indicators not only affect the intensity of polarization but also the direction of polarization. We establish the relationship between polarization intensity and quantum correction deformation parameters, revealing a gradual decline in polarization intensity with reduced radius and an anti-polarization behavior induced by the progressive increase in deformation parameters at a constant radius. Our analysis may provide observational evidence for quantum effect of general relativity.
© The Author(s) 2024
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