2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/173269Using a Lagrangean toy model the coupling of a negative pion superconducting field and the electromagnetic field of the star is analyzed. A numerical study of particles produced in the neutron star medium by means of the well-known parametric resonance phenomenon is performed.7 pages,5 figures, revtex formatGeneral Relativity and Quantum Cosmologytext