2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/45224The real meaning of `triviality' of (lambda Phi^4)_4 theory is outlined. Assuming `triviality' leads to an effective potential that is just the classical potential plus the zero-point energy of the free-field fluctuations. This V_{eff} gives spontaneous symmetry breaking. Its proper renormalization has the consequence that all scattering amplitudes vanish, self-consistently validating the original assumption. Nevertheless, the theory is physically distinguishable from a free field theory; it has a symmetry-restoring phase transition at a finite critical temperature.7 pages, LaTeX, DE-FG05-92ER40717-14High Energy Physics - PhenomenologyHigh Energy Physics - LatticeHigh Energy Physics - Theorytext