2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/51187In this paper we have considered the particle creation in the spatially closed Robertson-Walker space-time. We considered a real massive scalar field which conformally coupled to the Robertson-Walker background. With the dependence of the scale factor on time, the case under consideration is a dynamical Casimir effect with moving boundaries.6, no figuresHigh Energy Physics - Theorytext