Hawking radiation and back-reaction

Leonard Susskind*, Lárus Thorlacius

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

82 Citations (Scopus)


The puzzles of black-hole evaporation can be studied in the simplified context of 1 + 1 dimensional gravity. The semi-classical equations of Callan et al. provide a consistent description of the evaporation process which we describe in detail. We consider the possibility that black-hole evolution leads to massive stable remnants. We show that such zero-temperature-remnant solutions exist but we also prove that a decaying black hole cannot evolve into one of them. Finally we consider the issue of loss of quantum information behind the global event horizon which develops in these geometries. An analogy with a well-known solvable system shows that there may be less to information than meets the eye.

Original languageEnglish
Pages (from-to)123-147
Number of pages25
JournalNuclear Physics, Section B
Issue number1
Publication statusPublished - 31 Aug 1992

Bibliographical note

Funding Information:
* Work supported in part by NSF grant PHY89 17438.


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