2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/200739We analyze the conditions that make possible the description of entropy generation in the new inflationary model by means of a nearequilibrium process. We show that there are situations in which the bulk viscosity cannot describe particle production during the coherent field oscillations phase.7 pages, no figuresAstrophysicstext