Real scalar phase transitions: a nonperturbative analysis

@article{Gould2021RealSP,
  title={Real scalar phase transitions: a nonperturbative analysis},
  author={O. Gould},
  journal={Journal of High Energy Physics},
  year={2021},
  volume={2021},
  pages={1-50}
}
  • O. Gould
  • Published 2021
  • Physics
  • Journal of High Energy Physics
We study the thermal phase transitions of a generic real scalar field, without a Z2-symmetry, referred to variously as an inert, sterile or singlet scalar, or ϕ3 + ϕ4 theory. Such a scalar field arises in a wide range of models, including as the inflaton, or as a portal to the dark sector. At high temperatures, we perform dimensional reduction, matching to an effective theory in three dimensions, which we then study both perturbatively to three-loop order and on the lattice. For strong first… Expand
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