CP-symmetry spontaneous breaking in a nonstationary isotropic metric

It is shown that in the interaction of massless scalar field and massive fermion field in the space-time with homogeneous isotropic metric of the open type, the effect of spontaneous breaking of P- and CP-symmetries arises. With the aid of diagonalization of the hamiltonian by means of the Bogolyubov transformations the formulas are obtained for the density of the number of produced pairs, density of chiral charge and the pseudoscalar density of fermions. The additional terms to the density of the number of produced particles due to the effect of spontaneous symmetry breaking are calculated