2021/05/31 by Takuya Hirose, Nobuhito Maru
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Compactification (mathematics) #Cosmology and Gravitation Theories #Extra dimensions #Gauge symmetry #Gauge theory #Geometry #Goldstone boson #Inflation (cosmology) #Inflaton #Mathematical physics #Mathematics #Noncommutative and Quantum Gravity Theories #Particle physics #Physics #Planck #Quantum #Quantum electrodynamics #Quantum fluctuation #Quantum mechanics #Scalar (mathematics) #Scalar field #Symmetry (geometry) #Symmetry breaking #Theoretical physics #astro-ph.CO #hep-ph #hep-th
paper · pdf · doi:10.1007/jhep09(2021)124
17 pages, 3 figures, final version to appear in JHEP
openalex publication_date 2021/09/01 · arxiv created 2021/09/21 · arxiv updated 2021/10/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A bstract We propose a new inflation scenario in flux compactification, where a zero mode scalar field of extra components of the higher dimensional gauge field is identified with an inflaton. The scalar field is a pseudo Nambu-Goldstone boson of spontaneously broken translational symmetry in compactified spaces. The inflaton potential is non-local and finite, which is protected against the higher dimensional non-derivative local operators by quantum gravity corrections thanks to the gauge symmetry in higher dimensions and the shift symmetry originated from the translation in extra spaces. We give an explicit inflation model in a six dimensional scalar QED, which is shown to be consistent with Planck 2018 data.