Stochastic inflation revisited: non-slow-roll statistics and DBI inflation

  title={Stochastic inflation revisited: non-slow-roll statistics and DBI inflation},
  author={Andrew J. Tolley and Mark Wyman},
  journal={Journal of Cosmology and Astroparticle Physics},
  • A. Tolley, M. Wyman
  • Published 14 January 2008
  • Physics
  • Journal of Cosmology and Astroparticle Physics
Stochastic inflation describes the global structure of the inflationary universe by modeling the super-Hubble dynamics as a system of matter fields coupled to gravity where the sub-Hubble field fluctuations induce a stochastic force into the equations of motion. The super-Hubble dynamics are ultralocal, allowing us to neglect spatial derivatives and treat each Hubble patch as a separate universe. This provides a natural framework in which to discuss probabilities on the space of solutions and… 

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