Conformal invariance of curvature perturbation

被引：56

作者：

Gong, Jinn-Ouk ^{[1
]}

Hwang, Jai-chan ^{[2
]}

Park, Wan Il ^{[3
]}

Sasaki, Misao ^{[3
,4
]}

Song, Yong-Seon ^{[3
]}

机构：

[1] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

[2] Kyungpook Natl Univ, Dept Astron & Atmnospher Sci, Taegu 702701, South Korea

[3] Korea Inst Adv Study, Seoul 130722, South Korea

[4] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2011年 / 09期

关键词：

modified gravity; inflation; cosmological perturbation theory; MODEL;

D O I：

10.1088/1475-7516/2011/09/023

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show that in the single component situation all perturbation variables in the comoving gauge are conform ally invariant to all perturbation orders. Generally we identify a special time slicing, the uniform-conformal transformation slicing, where all perturbations are again conformally invariant to all perturbation orders. We apply this result to the delta N formalism, and show its conformal invariance.

引用

页数：13

共 19 条

[1]

[Anonymous], SCALAR TENSOR THEORY

[2] The Standard Model Higgs boson as the inflaton [J].