Creation of particles and the effective Lagrangian in the quasi-Euclidean model of the universe with an electro-magnetic field
A calculation of the number of scalar and spinor particles created in the quasi-Euclidean cosmological model with an electric field is carried out. The inverse effect of the created particles on the electric field is investigated. It is shown that for large times the creation of particles leads to a decrease of the electric field. The imaginary part of the effective action in quasi-Euclidean space with constant electric and magnetic fields is found.