https://doi.org/10.1140/epjc/s10052-023-12079-5
Regular Article - Theoretical Physics
Holographic Einstein rings of a Gauss–Bonnet AdS black hole
1
State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, 400074, Chongqing, People’s Republic of China
2
Department of Mechanics, Chongqing Jiaotong University, 400074, Chongqing, People’s Republic of China
3
College of Physics, Chongqing University, 401331, Chongqing, People’s Republic of China
4
School of Physics and Astronomy, China West Normal University, 637000, Nanchong, People’s Republic of China
Received:
9
July
2023
Accepted:
26
September
2023
Published online:
5
October
2023
Based on the AdS/CFT correspondence, we study the holographic Einstein image of a Gauss–Bonnet AdS black hole in the framework of wave optics. Our results show that for the absolute amplitude of total response function, there always exists the interference pattern when the scalar wave passes through black hole. And, the value of the amplitude depends closely on the properties of Gaussian source and spacetime geometry. More importantly, we also find that the holographic images always appears as a ring surrounded by the concentric stripe when observer located at the north pole. At other positions, this ring will change into a luminosity-deformed ring, or two light points. In addition, the influence of Gauss–Bonnet parameter 
, wave source and optical system on the holographic image have been carefully addressed and the results show that the radius of ring is dependent of the Gauss–Bonnet parameter but not dependent of wave source and optical system. The holographic images that different types of black holes have different features may shed deep insights on the existence of a gravity dual for a given material.
© The Author(s) 2023
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