Revisiting the tunneling spectrum and information recovery of a general charged and rotating black hole

TL;DR

This paper extends the understanding of Hawking radiation from Kerr-Newman black holes by deriving a general tunneling spectrum, revealing correlations that preserve information and address the black hole information paradox.

Contribution

It provides the most general tunneling spectrum for charged and rotating black holes and demonstrates how correlations in radiation encode information, resolving the paradox.

Findings

Correlations exist between sequential Hawking radiations.

Information can be recovered from radiation correlations.

Entropy is conserved during black hole evaporation.

Abstract

In this paper we revisit the tunneling spectrum of a charged and rotating black hole--Kerr-Newman black hole by using Parikh and Wilczek's tunneling method and get the most general result compared with the works [9, 10]. We find an ambiguity in Parikh and Wilczek's tunneling method, and give a reasonable description. We use this general spectrum to discuss the information recovery based on the Refs. [11-13]. For the tunneling spectrum we obtained, there exit correlations between sequential Hawking radiations, information can be carried out by such correlations, and the entropy is conserved during the radiation process. So we resolve the information loss paradox based on the methods [11-13] in the most general case.