Holographic Einstein rings of a black hole with a global monopole ...

• Main Authors: Zeng, Xiao-Xiong, Li, Li-Fang, Xu, Peng
• Format: Report
• Language: unknown
• Published: arXiv 2023
• Subjects: High Energy Physics - Theory hep-th; General Relativity and Quantum Cosmology gr-qc; FOS Physical sciences; North Pole; Stripe
• Online Access: https://dx.doi.org/10.48550/arxiv.2307.01973; https://arxiv.org/abs/2307.01973

The global monopole solutions which give rise to quite unusual physical phenomena have captured considerable attention. In this paper, we study the Einstein ring of the spherically symmetric AdS black hole solution with a global monopole based on the AdS/CFT correspondence. With the help of the given response function of the QFT on the boundary, we construct the holographic images of the black hole in the bulk. The Einstein rings on the images can be clearly observed. The holographic ring always appears with the concentric stripe surrounded when the observer located at the north pole, and an extremely bright ring when the observer is at the position of the photon sphere of the black hole. With the change of the observation position, this ring will change into a luminosity-deformed ring, or light points. Furthermore, we show that the monopole parameter has an effect on the brightness and the position of Einstein ring. All these results imply that the holographic images can be used as an effective tool to ... : revised version ...