2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/33904From the partition function of canonical ensemble we derive the entropy of the de Sitter space by anti-Wick rotation. And then from the one-loop bubble $S^2\times S^2$ created from vacuum fluctuation in de Sitter background space, we obtain the one-loop quantum correction to the entropy of de Sitter space.10 pages, 0 figuresGeneral Relativity and Quantum Cosmologytext