https://doi.org/10.1140/epjc/s10052-024-13445-7
Regular Article
Kerr/CFT correspondence for the extremal accelerating Kerr–Taub–NUT black hole
Jurusan Fisika, Universitas Katolik Parahyangan, Jalan Ciumbuleuit 94, 40141, Bandung, Indonesia
a
haryanto.siahaan@unpar.ac.id
Received:
23
May
2024
Accepted:
1
October
2024
Published online:
17
October
2024
In this paper, we explore the application of Kerr/CFT correspondence to the accelerating Kerr–Taub–NUT spacetime. We demonstrate that the correspondence can be maintained if the near-horizon angular coordinate is appropriately rescaled. This rescaling allows the Cardy formula to accurately reproduce the extremal Bekenstein–Hawking entropy, a departure from the typical direct recovery of extremal Bekenstein–Hawking temperature in Kerr/CFT literature. This discrepancy is attributed to the presence of multiple sources of conic singularity in the spacetime, specifically the acceleration and NUT parameters. To support the Kerr/CFT holography, we investigate the hidden conformal symmetry in the near-horizon region of the extremal black hole geometry. Our findings confirm that the angular coordinate rescaling does not introduce inconsistencies within the Kerr/CFT framework, as evidenced by the preserved hidden conformal symmetry and consistent entropy matching calculations in the near-horizon geometry of the extremal accelerating Kerr–Taub–NUT black hole.
© The Author(s) 2024
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