Anisotropic massive gauge-flation

Peter Adshead, Aike Liu

Research output: Contribution to journalArticle

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 languageEnglish (US)
Article number052
JournalJournal of Cosmology and Astroparticle Physics
Volume2018
Issue number7
DOIs
StatePublished - Jul 24 2018

Keywords

  • Inflation
  • initial conditions and eternal universe

ASJC Scopus subject areas

  • Astronomy and Astrophysics

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