Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1998-06-06
Phys.Rev.D59:044003,1999
Physics
High Energy Physics
High Energy Physics - Theory
LaTeX file and ps files for figures, new section is added, title is changed
Scientific paper
10.1103/PhysRevD.59.044003
The quantum properties of charged black holes (BHs) in 2D dilaton-Maxwell gravity (spontaneously compactified from heterotic string) with $N$ dilaton coupled scalars are studied. We first investigate 2D BHs found by McGuigan, Nappi and Yost. Kaluza-Klein reduction of 3D gravity with minimal scalars leads also to 2D dilaton-Maxwell gravity with dilaton coupled scalars and the rotating BH solution found by Ba\~nados, Teitelboim and Zanelli (BTZ) which can be also described by 2D charged dilatonic BH. Evaluating the one-loop effective action for dilaton coupled scalars in large $N$ (and s-wave approximation for BTZ case), we show that quantum-corrected BHs may evaporate or else anti-evaporate similarly to 4D Nariai BH as is observed by Bousso and Hawking. Higher modes may cause the disintegration of BH in accordance with recent observation by Bousso.
Nojiri Shin'ichi
Odintsov Sergei D.
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