Cosmic Censorship in Two-Dimensional Gravity

J. Russo; L. Susskind; L. Thorlacius

Cosmic Censorship in Two-Dimensional Gravity

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arxiv hep-th/9209012 v2 pith:F4Q36TMG submitted 1992-09-04 hep-th

J. Russo , L. Susskind , L. Thorlacius This is my paper · ORCID

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keywords boundarycensorshipconditionscosmicenergygravityinformationlow-energy

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A weak version of the cosmic censorship hypothesis is implemented as a set of boundary conditions on exact semi-classical solutions of two-dimensional dilaton gravity. These boundary conditions reflect low-energy matter from the strong coupling region and they also serve to stabilize the vacuum of the theory against decay into negative energy states. Information about low-energy incoming matter can be recovered in the final state but at high energy black holes are formed and inevitably lead to information loss at the semi-classical level.

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First Law for Nonsingular Black Holes in 2D Dilaton Gravity
gr-qc 2026-03 reject novelty 4.0 of 10

For 2D nonsingular dilaton black holes with A=f+c, the first law holds with energy E=-c/2 once the asymptotic time translation is properly normalized.

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