2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/153771Entropy production in quantum (field) systems requiring environment-induced decoherence is described in a Gaussian variational approximation. The new phenomenon of Semiquantum Chaos is reported. (Presented at the International Conference on Nonlinear Dynamics, Chaotic and Complex Systems, Zakopane (Poland), 7-12.11.95.)5 pagesQuantum PhysicsChaotic DynamicsHigh Energy Physics - TheoryNuclear Theorytext