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Trace anomaly and Hawking effect in generic 2D dilaton gravity theories

Mariano Cadoni
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Abstract

Black hole solutions in the context of a generic matter-coupled two-dimensional dilaton gravity theory are discussed both at the classical and semiclassical level. Starting from general assumptions, a criterion for the existence of black holes is given. The relationship between conformal anomaly and Hawking radiation is extended to a broad class of two-dimensional dilaton gravity models. A general and simple formula relating the magnitude of the Hawking effect to the dilaton potential evaluated on the horizon is derived.

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Mariano Cadoni. 1995-10-09. Trace anomaly and Hawking effect in generic 2D dilaton gravity theories. https://doi.org/10.1103/physrevd.53.4413

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