A Spacetime Foam approach to the cosmological constant and entropy

preprint2002arXivOpen access

Abstract

A simple model of spacetime foam, made by NN wormholes in a semiclassical approximation, is taken under examination. The Casimir-like energy of the quantum fluctuation of such a model and its probability of being realized are computed. Implications on the Bekenstein-Hawking entropy and the cosmological constant are considered.

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