2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/110998Experiments involving phase coherent dynamics of networks of spins, such as echo experiments, will only work if decoherence can be suppressed. We show here, by analyzing the particular example of a crystalline network of Fe8 molecules, that most decoherence typically comes from pairwise interactions (particularly dipolar interactions) between the spins, which cause `correlated errors'. However at very low T these are strongly suppressed. These results have important implications for the design of quantum information processing systems using electronic spins.4 pages, 4 figures. Final PRL versionMesoscale and Nanoscale PhysicsOther Condensed MatterQuantum Physicstext