59 citations · 66 across the 2 of their papers we have counts for
3 papers
On the Cosmological Frame Problem
Sotirios Karamitsos, Apostolos Pilaftsis
We introduce a fully-frame covariant formalism for inflation by taking into account conformal transformations in addition to field reparametrizations. We begin by providing a brief…
Frame Covariant Nonminimal Multifield Inflation
Sotirios Karamitsos, Apostolos Pilaftsis
We introduce a frame-covariant formalism for inflation of scalar-curvature theories by adopting a differential geometric approach which treats the scalar fields as coordinates livi…
Frame-Covariant Formulation of Inflation in Scalar-Curvature Theories
Daniel Burns, Sotirios Karamitsos, Apostolos Pilaftsis
We develop a frame-covariant formulation of inflation in the slow-roll approximation by generalizing the inflationary attractor solution for scalar-curvature theories. Our formulat…