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Can conformal transformations change the fate of 2D black holes?

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Can conformal transformations change the fate of 2D black holes?

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Cruz Muñoz, José Luis; Fabbri, Alessandro; Navarro Salas, José

Aquest document és un/a article, creat/da en: 1999

Este documento está disponible también en : 10.1016/S0370-2693(99)00081-7

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.

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