PIRSA:14010101 Scientific Series Cosmology

DOI10.48660/14010101

Series: Cosmology and Gravitation

Johnson, M. (2014). Simulating the Universe(s). Perimeter Institute. https://pirsa.org/14010101

Johnson, Matthew. Simulating the Universe(s). Perimeter Institute, Jan. 14, 2014, https://pirsa.org/14010101 

@misc{ pirsa_PIRSA:14010101,
  doi = {10.48660/14010101},
  url = {https://pirsa.org/14010101},
  author = {Johnson, Matthew},
  keywords = {Cosmology},
  language = {en},
  title = {Simulating the Universe(s)},
  publisher = {Perimeter Institute},
  year = {2014},
  month = {jan},
  note = {PIRSA:14010101 see, \url{https://pirsa.org}}
}

Abstract

The theory of eternal inflation in an inflaton potential with multiple vacua predicts that our universe is one of many bubble universes nucleating and growing inside an ever-expanding false vacuum. The collision of our bubble with another could provide an important observational signature to test this scenario. In this talk I will describe an algorithm for accurately computing the cosmological observables arising from bubble collisions directly from the Lagrangian of a single scalar field. This represents the first fully-relativistic set of predictions from an ensemble of scalar field models giving rise to eternal inflation, and I will describe on-going phenomenological studies and observational searches.

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