A Spacetime Foam Approach to the Schwarzschild-de Sitter Entropy
Remo Garattini
Abstract
The entropy for a black hole in a de Sitter space is approached within the framework of spacetime foam. A simple model, made by N wormholes in a semiclassical approximation, is taken under examination to compute the entropy for such a case. An extension to the extreme case when the black hole and cosmological horizons are equal is discussed.
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