Evolution of second-order cosmological perturbations

被引：148

作者：

Malik, KA

Wands, D

机构：

[1] GRECO, Inst Astrophys, CNRS, F-75014 Paris, France

[2] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 2EG, Hants, England

来源：

CLASSICAL AND QUANTUM GRAVITY | 2004年 / 21卷 / 11期

关键词：

D O I：

10.1088/0264-9381/21/11/L01

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a method for constructing gauge-invariant cosmological perturbations which are gauge-invariant up to second order. As an example, we give the gauge-invariant definition of the second-order curvature perturbation on uniform density hypersurfaces. Using only the energy conservation equation, we show that this curvature perturbation is conserved at second order on large scales for adiabatic perturbations.

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页码：L65 / L71

页数：7

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