Is there a Peccei–Quinn phase transition?

@article{Anisimov2005IsTA,
  title={Is there a Peccei–Quinn phase transition?},
  author={A. Anisimov and M. Dine},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2005},
  volume={2005},
  pages={009-009}
}
  • A. Anisimov, M. Dine
  • Published 2005
  • Physics
  • Journal of Cosmology and Astroparticle Physics
  • The nature of axion cosmology is usually said to depend on whether the Peccei-Quinn (PQ) symmetry breaks before or after inflation. The PQ symmetry itself is believed to be an accident, so there is not necessarily a symmetry during inflation at all. We explore these issues in some simple models, which provide examples of symmetry breaking before and after inflation, or in which there is no symmetry during inflation and no phase transition at all. One effect of these observations is to relax the… CONTINUE READING
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