Extranatural Flux Inflation
  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.
