Hawking radiation and Page curve of regular black holes

doi:10.1088/1674-1056/ad989b

Abstract We discuss the information paradox and its implications for regular black holes. Our primary focus is on Page curve using the island treatment and analyzing relevant parameters like Page time and scrambling time. Calculations without considering the island show that the entanglement entropy increases linearly and continues to infinity. When we consider the generalized entropy, we find that the island extends just beyond the horizon, leading to a constant entanglement entropy. Specifically, we find that in the early stages, the island never forms, regardless of the charge and mass configuration of the black hole.

Keywords: black holes AdS/CFT correspondence Page curve

Received: 25 June 2024
Revised: 26 October 2024
Accepted manuscript online:

PACS:

04.70.Dy

(Quantum aspects of black holes, evaporation, thermodynamics)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 12275166 and 12311540141).

Corresponding Authors: Li-Jun Tian
E-mail: asahi@shu.edu.cn;tianlijun@shu.edu.cn

Cite this article:

Chen-Yang Dong(董晨阳) and Li-Jun Tian(田立君)† Hawking radiation and Page curve of regular black holes 2025 Chin. Phys. B 34 020401

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