1302.1290 (Cosmin Crucean)

Fermion production by a dependent of time electric field in de Sitter
universe    [PDF]

Cosmin Crucean

Fermion production by the electric field of a charge on de Sitter expanding universe is analyzed. The amplitude and probability of pair production are computed. We obtain from our calculations that the modulus of the momentum is no longer conserved and that there are probabilities for production processes where the helicity is no longer conserved. The rate of pair production in an electric field is found to be important in the early universe when the expansion factor was large comparatively with the particle mass.

View original: http://arxiv.org/abs/1302.1290