Green Functions and Thermal Nature of Black Holes
Abstract
There are several ways to establish and study thermal properties of black holes. I review here method of Fulling and Ruijsenaars, based on the analytic structure of Green functions on the complex plane. This method provides a clear distinction between zero and finite temperature field theories, and allows for quick evaluation of black hole temperature. (Lectures presented at the Danube Workshop '93, June 1993, Belgrade, Yugoslavia.)
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