2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/56094We conjecture that the neutral black hole pair production is related to the vacuum fluctuation of pure gravity via the Casimir-like energy. A generalization of this process to a multi-black hole pair is considered. Implications on the foam-like structure of spacetime and on the cosmological constant are discussed.Revtex 3.0, 17 pages. Published in the proceedings of 19th Texas Symposium on Relativistic Astrophysics: Texas in Paris, Paris, France, 14-18 Dec 1998High Energy Physics - TheoryGeneral Relativity and Quantum Cosmologytext