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Anomaly induced effective actions and Hawking radiation

Roberto Balbinot, Alessandro Fabbri, Ilya Shapiro

hep-tharXiv:hep-th/9904074

Abstract

The quantum stress tensor in the Unruh state for a conformal scalar propagating in a 4D Schwarzschild black hole spacetime is reconstructed in its leading behaviour at infinity and near the horizon by means of an effective action derived by functionally integrating the trace anomaly.

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