2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/195888A linear increase with the volume of the topological susceptibility can signal spontaneous breaking of parity and time inversion, due to a nonzero vacuum expectation value of the topological charge. Such a breaking would produce a nonzero electric dipole moment of the neutron, d_n. An upper limit to d_n is derived from numerical simulations at increasing volumes.4 pages, 3 figures, talk presented at QCD05 (Montpellier) 4-9 JulyHigh Energy Physics - Latticetext