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 e-folding or so, or over tens of e-folds.
Original language | English (US) |
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Article number | 052 |
Journal | Journal of Cosmology and Astroparticle Physics |
Volume | 2018 |
Issue number | 7 |
DOIs | |
State | Published - Jul 24 2018 |
Keywords
- Inflation
- initial conditions and eternal universe
ASJC Scopus subject areas
- Astronomy and Astrophysics