2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/52616A mechanism for suppressing the cosmological constant is developed, based on an analogy with a superconducting phaseshift in which free fermions coupled perturbatively to a weak gravitational field are in an unstable false vacuum state. The coupling of the fermions to the gravitational field generates fermion condensates with zero momentum and a phase transition induces a nonperturbative transition to a true vacuum state by producing a positive energy gap $Δ$ in the vacuum energy, identified with $\sqrtΛ$, where $Λ$ is the cosmological constant. In the strong coupling limit a large cosmological constant induces a period of inflation in the early universe, followed by a weak coupling limit in which $\sqrtΛ$ vanishes exponentially fast as the universe expands due to the dependence of the energy gap on the density of Fermi surface fermions, $D(ε)$, predicting a small cosmological constant in the present universe.13 PagesHigh Energy Physics - TheoryAstrophysicsGeneral Relativity and Quantum Cosmologytext