Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2001-11-21
Int.J.Mod.Phys. A17 (2002) 1965-1977
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
Revtex 3.0, 10 pages, Replaced version with minor changes and one ref. added
Scientific paper
10.1142/S0217751X02010637
A simple model of spacetime foam, made by two different types of wormholes in a semiclassical approximation, is taken under examination: one type is a collection of $N_{w}$ Schwarzschild wormholes, while the other one is made by Schwarzschild-Anti-de Sitter wormholes. The area quantization related to the entropy via the Bekenstein-Hawking formula hints a possible selection between the two configurations. Application to the charged black hole are discussed.
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