Physics Letters B (Mar 2018)

Hillclimbing saddle point inflation

  • Kiyoharu Kawana,
  • Katsuta Sakai

DOI
https://doi.org/10.1016/j.physletb.2018.01.007
Journal volume & issue
Vol. 778, no. C
pp. 60 – 63

Abstract

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Recently a new inflationary scenario was proposed in [1] which can be applicable to an inflaton having multiple vacua. In this letter, we consider a more general situation where the inflaton potential has a (UV) saddle point around the Planck scale. This class of models can be regarded as a natural generalization of the hillclimbing Higgs inflation [2].