Mutated hybrid inflation in $f(R,\square R)$-gravity

Abstract

A new hybrid inflationary scenario in the context of $f(R,\square R)$-gravity is proposed. Demanding the waterfall field to 'support the potential from below' [unlike the original proposal by Stewart in Phys. Lett. B345, 414 (1995)], we demonstrate that the scalar potential is similar to that of the large-field chaotic inflation model proposed by Linde in Phys. Lett. B129, 177 (1983). Inflationary observables are used to constrain the parameter space of our model; in the process, an interesting limit on the number of e-folds N is found.

9 pages, 2 figures, LaTeX2e, v2: Sec.3 expanded and improved, 1 Fig. added, a new result included, some Eqs. corrected, 2 References added

References in corpus (2)

• New models of chaotic inflation in supergravity
• Kaehler Potentials for Hilltop F-term Hybrid Inflation

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• Stability investigations of de Sitter inflationary solutions in power-law extensions of the Starobinsky model
• Higher-order gravity models: corrections up to cubic curvature invariants and inflation