Inflationary $\alpha -$attractors and $F(R)$ gravity

Abstract

We consider a generic class of the so-called inflationary $-\alpha$ attractor models and compute the cosmological observables in the Einstein and Jordan frames, of the corresponding $F(R)-$gravity theory. We find that the two sets coincide (to within errors from the use of the slow-roll approximation) for moderate and large values of the number of e-foldings $N$, which is the novel result of this paper, generalizing previous results on the subject (see e.g. Ref. (\citen{oik1})). We briefly comment on the possible generalizations of these results.

15 pages, 8 figures, LaTeX, Accepted for publication in IJMPA

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Cited by in corpus (1)

• Preventing Curvature Singularities in $f(R)$ Dark Energy Models