Description
Multiple spectator fields are present during inflation, and thus they are expected to interact with the inflaton. We study time-dependent loop corrections to inflationary power spectrum, utilising the Schwinger-Keldysh formalism. We consider a generic interaction between heavy fields and the inflaton, calculate loop corrections to inflaton two-point correlation function, and discuss the effects of such heavy fields on primordial power spectrum.
Author
Dr
Jinsu Kim
(Georg-August-Universität Göttingen)
Co-authors
Laura Covi
(Georg August Universitaet Goettingen (DE))
Mr
Francesco Costa
(Georg-August-Universität Göttingen)
