Isocurvature perturbations in generalized gravity
Koh, Seoktae (Jeju National University)

We consider the isocurvature perturbations as well as the adiabatic perturbation during inflation with multiple scalar fields in generalized gravity theoreis. The evolution of adiabatic perturbation can be sourced by the generalized gravity parameters as well as by the isocurvature perturbations due to the multiple scalar fields. However, the term which is given by the generalized gravity parameters seems to be suppressed on the super-Hubble scales.