PIRSA:06120021 Conference Cosmology

DOI10.48660/06120021

Conference/School: Young Researchers Conference - 2006

Johnson, M. (2006). Bubble Nucleation and Eternal Inflation. Perimeter Institute. https://pirsa.org/06120021

Johnson, Matthew. Bubble Nucleation and Eternal Inflation. Perimeter Institute, Dec. 05, 2006, https://pirsa.org/06120021 

@misc{ pirsa_PIRSA:06120021,
  doi = {10.48660/06120021},
  url = {https://pirsa.org/06120021},
  author = {Johnson, Matthew},
  keywords = {Cosmology},
  language = {en},
  title = {Bubble Nucleation and Eternal Inflation},
  publisher = {Perimeter Institute},
  year = {2006},
  month = {dec},
  note = {PIRSA:06120021 see, \url{https://pirsa.org}}
}

Abstract

A number of mechanisms have been introduced in previous literature that might be responsible for transitions between metastable minima in a scalar field theory coupled to gravity. The connection between these transition mechanisms has remained unclear, and current formulations of eternal inflation only include a subset of the allowed processes. In the first part of this talk, I will discuss how a number of transition mechanisms can be unified in the thin-wall limit, with interesting consequences for quantum cosmology and eternal inflation. I will then discuss making predictions in an eternally inflating universe, and introduce a measure for eternal inflation that is based on transitions rather than vacua.

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