Application of gradient expansion to an inflationary universe

被引：30

作者：

Nambu, Y

Taruya, A

机构：

[1] Department of Physics, Nagoya University, Chikusa

来源：

CLASSICAL AND QUANTUM GRAVITY | 1996年 / 13卷 / 04期

关键词：

D O I：

10.1088/0264-9381/13/4/010

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using the long-wave perturbation scheme (gradient expansion), the effect of inhomogeneity on the inflationary phase is investigated. We have solved the perturbation equation whose source term comes from inhomogeneity of a scalar field and a seed metric. The result indicates that a sub-horizon scale inhomogeneity strongly affects the onset of inflation.

引用

收藏

页码：705 / 713

页数：9

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