The Black Hole Information Problem

TL;DR

This paper reviews the black hole information paradox, its partial resolutions via AdS/CFT, and discusses recent developments and unresolved issues like the firewall puzzle, highlighting ongoing challenges in understanding black hole information.

Contribution

It provides a comprehensive review of the black hole information problem, including classical paradoxes, partial resolutions, and recent ideas addressing unresolved questions.

Findings

AdS/CFT offers a partial resolution to the paradox.

Black hole complementarity has limitations.

Recent proposals aim to resolve the firewall puzzle.

Abstract

The black hole information problem has been a challenge since Hawking's original 1975 paper. It led to the discovery of AdS/CFT, which gave a partial resolution of the paradox. However, recent developments, in particular the firewall puzzle, show that there is much that we do not understand. I review the black hole, Hawking radiation, and the Page curve, and the classic form of the paradox. I discuss AdS/CFT as a partial resolution. I then discuss black hole complementarity and its limitations, leading to many proposals for different kinds of `drama.' I conclude with some recent ideas.