A Spacetime Foam approach to the cosmological constant and entropy

Details A Spacetime Foam approach to the cosmological constant and entropy A Spacetime Foam approach to the cosmological constant and entropy

2000-03-22

arxiv.org/abs/gr-qc/0003090v2

Int.J.Mod.Phys. D4 (2002) 635

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Uses RevTeX, 24 pages, Appendix deleted and some corrections inserted. Final results unchanged

Scientific paper

10.1142/S0218271802001445

A simple model of spacetime foam, made by $N$ 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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