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Chaotic Universe Dynamics Using a Fokker-Planck Equation

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Publication Date
Identifiers
DOI: 10.1142/S0217732387001038
OAI: oai:inspirehep.net:248058
Source
INSPIRE-HEP
Keywords
  • Astrophysics
  • Theory-Hep
  • Gravitation And Cosmology
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Abstract

A Fokker-Planck equation that accounts for fluctuations in field and its conjugate momentum is solved numerically for the case of a λϕ4 potential. Although the amount of inflation agrees closely with that expected classically, in certain cases (large initial fields or large dispersions) the "slow rolling" approximation appears invalid. In such cases inflation would stop prematurely before possibly restarting.

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