2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/97378We present results of Monte Carlo simulations of the three-dimensional Edwards-Anderson Ising spin glass in the presence of a (random) field. A finite-size scaling analysis of the correlation length shows no indication of a transition, in contrast to the zero-field case. This suggests that there is no Almeida-Thouless line for short-range Ising spin glasses.4 pages, 4 figures, 1 tableDisordered Systems and Neural Networkstext