Tilted hybrid inflation

被引：19

作者：

GarciaBellido, J ^{[1
]}

Linde, A ^{[1
]}

机构：

[1] STANFORD UNIV,DEPT PHYS,STANFORD,CA 94305

来源：

PHYSICS LETTERS B | 1997年 / 398卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(97)00211-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose a new version of the hybrid inflation scenario that produces a significantly 'tilted' n > 1 spectrum of curvature perturbations. This may happen in supersymmetric models where the inflaton field acquires a mass proportional to the Hubble constant, and in the models where this field non-minimally couples to gravity, A large tilt of the spectrum in this scenario is often accompanied by a considerable contribution of tensor perturbations to the temperature anisotropies. We also show that under certain conditions the spectrum of density perturbations in this scenario may have a minimum on an intermediate length scale. (C) 1997 Elsevier Science B.V.

引用

收藏

页码：18 / 22

页数：5

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