Information recovery from evaporating rotating charged black holes

Zhi-Wei Wang, Samuel Leon Braunstein, Saurya Das*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In classical gravity, nothing can escape from a black hole, not even light. In particular, this happens for stationary black holes because their horizons are null. We show, on the other hand, that the apparent horizon and the region near r = 0 of an evaporating charged, rotating black hole are both timelike. This implies that there exists a channel, via which classical or quantum information can escape to the outside, as the black hole evaporates. Since astrophysical black holes have at least some rotation, our results apply to all black holes in nature. We discuss implications of our result.
Original languageEnglish
Title of host publicationThe Sixteenth Marcel Grossmann Meeting
Subtitle of host publicationOn Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories
EditorsRemo Ruffini, Gregory Vereshchagin
Place of PublicationSingapore
PublisherWorld Scientific Publishing
Number of pages11
ISBN (Electronic)978-981-12-6977-6
ISBN (Print)9789811269769
Publication statusPublished - 1 Feb 2023

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