Translational Invariance and the Anisotropy of the Cosmic Microwave Background
Nov, 200813 pages
Published in:
- Phys.Rev.D 81 (2010) 083501
e-Print:
- 0811.1086 [astro-ph]
Report number:
- CALT-68-2705
View in:
Citations per year
Abstract: (arXiv)
Primordial quantum fluctuations produced by inflation are conventionally assumed to be statistically homogeneous, a consequence of translational invariance. In this paper we quantify the potentially observable effects of a small violation of translational invariance during inflation, as characterized by the presence of a preferred point, line, or plane. We explore the imprint such a violation would leave on the cosmic microwave background anisotropy, and provide explicit formulas for the expected amplitudes of the spherical-harmonic coefficients.- 98.80.Cq
- inflation
- cosmic background radiation: anisotropy
- fluctuation: quantum
- invariance: translation
- correlation function
References(73)
Figures(0)