Mutated hybrid inflation in f(R, □R)-gravity

被引：10
|
作者：
Iihoshi, Masao [1 ]
机构：
[1] Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2011年 / 02期
关键词：
modified gravity; inflation; 6TH-ORDER GRAVITY;
D O I：
10.1088/1475-7516/2011/02/022
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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.
引用
收藏
页数：11
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