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

共 28 条

[1] Adiabatic and isocurvature perturbations from inflation: Power spectra and consistency relations [J].

Bartolo, N ;

Matarrese, S ;

Riotto, A .

PHYSICAL REVIEW D, 2001, 64 (12)

[2]

DEBERNARDIS P, ASTROPH0011469

[3]

DEZOTTI G, ASTROPH9902103

[4]

DODELSON S, ASTROPH0109354

[5]

GLINER EB, 1966, ZH EKSP TEOR FIZ, V22, P378

[6] Adiabatic and entropy perturbations from inflation [J].

Gordon, C ;

Wands, D ;

Bassett, BA ;

Maartens, R .

PHYSICAL REVIEW D, 2001, 63 (02) :11

[7] Accurate determination of inflationary perturbations [J].

Grivell, IJ ;

Liddle, AR .

PHYSICAL REVIEW D, 1996, 54 (12) :7191-7198

[8] INFLATIONARY UNIVERSE - A POSSIBLE SOLUTION TO THE HORIZON AND FLATNESS PROBLEMS [J].

GUTH, AH .

PHYSICAL REVIEW D, 1981, 23 (02) :347-356

[9] FLUCTUATIONS IN THE NEW INFLATIONARY UNIVERSE [J].

GUTH, AH ;

PI, SY .

PHYSICAL REVIEW LETTERS, 1982, 49 (15) :1110-1113

[10]

HALVERSON NW, ASTROPH0104489

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