The power spectrum for a multi-component inflaton to second-order corrections in the slow-roll expansion

被引：62

作者：

Gong, JO ^{[1
]}

Stewart, ED ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305701, South Korea

来源：

PHYSICS LETTERS B | 2002年 / 538卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(02)02004-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We derive the power spectrum P(k) of the density perturbations produced during inflation up to second-order corrections in the standard slow-roll approximation for an inflaton with more than one degree of freedom. We also present the spectral index n up to first-order corrections including previously missing terms, and the running dn/d Ink to leading order. (C) 2002 Published by Elsevier Science B.V.

引用

页码：213 / 222

页数：10

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