Inflationary baryogenesis - art. no. 063511

In this paper we explore the possibility of creating the baryon asymmetry o f the universe during inflation and reheating due to the decay of a field a ssociated with the inflaton. CP violation is attained by assuming that this field is complex with a phase that varies as the inflaton evolves. We cons ider chaotic and natural inflation scenarios. In the former case. the compl ex decaying field is the inflaton itself and. in the latter case. the phase of the complex field is the inflaton. We calculate the asymmetry produced using the Bogolyubov formalism that relates annihilation and creation opera tors at late time to the annihilation and creation operators at early time.