2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/211695We give the generalization of the method of the space-time description of particle creation by a gravitational field for a scalar field with nonconformal coupling to the curvature. The space-time correlation function is obtained for a created pair of the quasi-particles, corresponding to a diagonal form of the instantaneous Hamiltonian. The case of an adiabatic change of the metric of homogeneous isotropic space is analyzed. We show that the created pairs of quasi-particles in de Sitter space should be interpreted as pairs of virtual particles.7 pages, 3 figuresGeneral Relativity and Quantum CosmologyHigh Energy Physics - Theorytext