Mutated hybrid inflation in $f(R,{\Box}R)$-gravity

Details Mutated hybrid inflation in $f(R,{\Box}R)$-gravity Mutated hybrid inflation in $f(R,{\Box}R)$-gravity

2010-11-17

arxiv.org/abs/1011.3927v2

JCAP 1102:022,2011

Physics

High Energy Physics

High Energy Physics - Theory

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

Scientific paper

10.1088/1475-7516/2011/02/022

A new hybrid inflationary scenario in the context of $f(R,{\Box}R)$-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.

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