2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/100743The hypothesis is proposed that under the approximation that the quantum equations of motion reduce to the classical ones, the quantum vacuum also reduces to the classical vacuum--the empty space. The vacuum energy of QED is studied under this hypothesis. A possible solution to the cosmological constant problem is provided and a kind of parameterization of the cosmological "constant" is derived.6 pages, 2 figures, revtex4; references added, content addedHigh Energy Physics - Theorytext