2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50032We compute the quantum vacuum polarization for a pure neutral scalar field theory within the context of single-particle quantum mechanics. The loop diagram is computed without ever encountering loop-momentum integrals. Our approach is based on standard Feynman path integrals. Contact is made to scalar QED.17 pages, 2 figuresHigh Energy Physics - Theorytext