Inflaton two-point correlation in the presence of a cosmic string

被引：11

作者：

Tseng, Chien-Yao ^{[1
]}

Wise, Mark B. ^{[1
]}

机构：

[1] CALTECH, Pasadena, CA 91125 USA

来源：

PHYSICAL REVIEW D | 2009年 / 80卷 / 10期

关键词：

BACKGROUND POWER SPECTRUM; INFLATIONARY UNIVERSE SCENARIO; TEMPERATURE ANISOTROPY; MOSAIC OBSERVATIONS; INITIAL CONDITIONS; MICROWAVE; FLUCTUATIONS; COSMOLOGY; FLATNESS; HORIZON;

D O I：

10.1103/PhysRevD.80.103512

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Precise measurements of the microwave background anisotropy have confirmed the inflationary picture of approximately scale invariant, Gaussian primordial adiabatic density perturbations. However, there are some anomalies that suggest a small violation of rotational and/or translational invariance in the mechanism that generates the primordial density fluctuations. Motivated by this we study the two-point correlation of a massless scalar (the inflaton) when the stress tensor contains the energy density from an infinitely long straight cosmic string in addition to a cosmological constant.

引用

页数：6

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