Can conformal Transformations change the fate of 2D black holes?
arXiv:hep-th/9811246 · doi:10.1016/S0370-2693(99)00081-7
Abstract
By using a classical Liouville-type model of two dimensional dilaton gravity we show that the one-loop theory implies that the fate of a black hole depends on the conformal frame. There is one frame for which the evaporation process never stops and another one leading to a complete disappearance of the black hole. This can be seen as a consequence of the fact that thermodynamic variables are not conformally invariant. In the second case the evaporation always produces the same static and regular end-point geometry, irrespective of the initial state.
Some typos corrected. A few comments and two references added. Accepted for publication in PLB. Latex, 11 pages, no figures
References in corpus (9)
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Cited by in corpus (9)
- Dilaton Gravity in Two Dimensions
- On the viability of the Palatini form of 1/R gravity
- Quantum evolution of near-extremal Reissner-Nordstrom black holes
- Evaporation of near-extremal Reissner-Nordstrom black holes
- Integrable models and degenerate horizons in two-dimensional gravity
- Thermodynamics of de Sitter Black Holes with Conformally Coupled Scalar Fields
- Two-Dilaton Theories in Two Dimensions from Dimensional Reduction
- 2D gravity without test particles is pointless (Comment on hep-th/0011136)
- On the normalization of Killing vectors and energy conservation in two-dimensional gravity