A Conformal Affine Toda Model of 2D-Black Holes the End-Point State and the S-Matrix

Details A Conformal Affine Toda Model of 2D-Black Holes the End-Point State and the S-Matrix A Conformal Affine Toda Model of 2D-Black Holes the End-Point State and the S-Matrix

1993-02-03

arxiv.org/abs/hep-th/9302011v1

Phys.Rev.D48:2660-2669,1993

Physics

High Energy Physics

High Energy Physics - Theory

ROM2F-93-03, 27 pages, phyzzx

Scientific paper

10.1103/PhysRevD.48.2660

In this paper we investigate in more detail our previous formulation of the dilaton-gravity theory by Bilal--Callan--de~Alwis as a $SL_2$-conformal affine Toda (CAT) theory. Our main results are: i) a field redefinition of the CAT-basis in terms of which it is possible to get the black hole solutions already known in the literature; ii) an investigation the scattering matrix problem for the quantum black hole states. It turns out that there is a range of values of the $N$ free-falling shock matter fields forming the black hole solution, in which the end-point state of the black hole evaporation is a zero temperature regular remnant geometry. It seems that the quantum evolution to this final state is non-unitary, in agreement with Hawking's scenario for the black hole evaporation.

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