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Title: Chromo-natural model in anisotropic background

Abstract

In this work we study the chromo-natural inflation model in the anisotropic setup. Initiating inflation from Bianchi type-I cosmology, we analyze the system thoroughly during the slow-roll inflation, from both analytical and numerical points of view. We show that the isotropic FRW inflation is an attractor of the system. In other words, anisotropies are damped within few e-folds and the chromo-natural model respects the cosmic no-hair conjecture. Furthermore, we demonstrate that in the slow-roll limit, the anisotropies in both chromo-natural and gauge-flation models share the same dynamics.

Authors:
;  [1]
  1. School of Physics, Institute for Research in Fundamental Sciences (IPM), P. Code. 19538-33511, Tehran (Iran, Islamic Republic of)
Publication Date:
OSTI Identifier:
22370660
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2014; Journal Issue: 03; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ANISOTROPY; ATTRACTORS; COSMOLOGY; COSMOLOGICAL INFLATION

Citation Formats

Maleknejad, Azadeh, and Erfani, Encieh. Chromo-natural model in anisotropic background. United States: N. p., 2014. Web. doi:10.1088/1475-7516/2014/03/016.
Maleknejad, Azadeh, & Erfani, Encieh. Chromo-natural model in anisotropic background. United States. https://doi.org/10.1088/1475-7516/2014/03/016
Maleknejad, Azadeh, and Erfani, Encieh. 2014. "Chromo-natural model in anisotropic background". United States. https://doi.org/10.1088/1475-7516/2014/03/016.
@article{osti_22370660,
title = {Chromo-natural model in anisotropic background},
author = {Maleknejad, Azadeh and Erfani, Encieh},
abstractNote = {In this work we study the chromo-natural inflation model in the anisotropic setup. Initiating inflation from Bianchi type-I cosmology, we analyze the system thoroughly during the slow-roll inflation, from both analytical and numerical points of view. We show that the isotropic FRW inflation is an attractor of the system. In other words, anisotropies are damped within few e-folds and the chromo-natural model respects the cosmic no-hair conjecture. Furthermore, we demonstrate that in the slow-roll limit, the anisotropies in both chromo-natural and gauge-flation models share the same dynamics.},
doi = {10.1088/1475-7516/2014/03/016},
url = {https://www.osti.gov/biblio/22370660}, journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 03,
volume = 2014,
place = {United States},
year = {Sat Mar 01 00:00:00 EST 2014},
month = {Sat Mar 01 00:00:00 EST 2014}
}