2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/79944In order to analyze the effect of chaos or order on the rate of decoherence in a subsystem we aim to distinguish effects of the two types of dynamics from those depending on the choice of the wave packet. To isolate the former we introduce a random matrix model that permits to vary the coupling strength between the subsystems. The case of strong coupling is analyzed in detail, and we find at intermediate times a weak effect of spectral correlations that is reminiscent of the correlation hole.7 pages, 2 figures (eps)Chaotic DynamicsCondensed MatterQuantum Physicstext