Soliton Induced Singularities in 2 d Gravity and their Evaporation

Abstract

Positive energy singularities induced by Sine-Gordon solitons in 1+1 dimensional dilaton gravity with positive and negative cosmological constant are considered. When the cosmological constant is positive, the singularities combine a white hole, a timelike singularity and a black hole joined smoothly near the soliton center. When the cosmological constant is negative, the solutions describe two timelike singularities joined smoothly near the soliton center. We describe these spacetimes and examine their evaporation in the one loop approximation.

15 pages (37.7 kb), PHYZZX. Figures available from authors.

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• Liouville Models of Black Hole Evaporation
• Cosmic Censorship in Two-Dimensional Gravity
• A Possible Resolution of the Black Hole Information Puzzle
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• Revisit on two-dimensional self-gravitating kinks: superpotential formalism and linear stability
• Particle creation in (2+1) circular dust collapse
• Hawking Radiation and Evaporation of the Black Hole Induced by a Klein-Gordon Soliton
• Unveiling horizons in quantum critical collapse
• Energy emission from high curvature region and its backreation