Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1994-10-07
Phys.Rev.D51:4319-4329,1995
Physics
High Energy Physics
High Energy Physics - Theory
24 pages, 6 figures available upon request, Plain Tex, INFN-CA-TH-94-26
Scientific paper
10.1103/PhysRevD.51.4319
A four-dimensional dilaton-gravity action whose spherical reduction to two dimensions leads to the Jackiw-Teitelboim theory is presented. A nonsingular black hole solution of the theory is obtained and its physical interpretation is discussed. The classical and semiclassical properties of the solution and of its 2d counterpart are analysed. The 2d theory is also used to model the evaporation process of the near-extremal 4d black hole. We describe in detail the peculiarities of the black hole solutions, in particular the purely topological nature of the Hawking radiation, in the context of the Jackiw-Teitelboim theory.
Cadoni Mariano
Mignemi Salvatore
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