Anisotropic Massive Gauge-flation
Cosmology and Nongalactic Astrophysics
2018-08-08 v2 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
We study anisotropic inflationary solutions in massive Gauge-flation. We work with the theory in both the Stueckelberg and dynamical symmetry-breaking limits and demonstrate that extended periods of accelerated anisotropic expansion are possible. In the case of dynamical symmetry breaking, we show that spacetime can transition from isotropic quasi-de Sitter space to an accelerating Bianchi spacetime due to a rolling Higgs field - the spacetime can develop hair. Similarly, symmetry restoring transitions are possible from accelerating Bianchi spacetime to quasi-de Sitter space - the spacetime can lose its hair. These transitions can be arranged to occur quickly, within an -folding or so, or over tens of -folds.
Cite
@article{arxiv.1803.07168,
title = {Anisotropic Massive Gauge-flation},
author = {Peter Adshead and Aike Liu},
journal= {arXiv preprint arXiv:1803.07168},
year = {2018}
}
Comments
24 pages, 10 figures