Stochastic Dynamics of an Inflationary Model and Initial Distribution of Universes : Astrophysics and Relativity

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概要

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• We investigate the stationary solution of the modified Fokker-Planck equation which governs the global dynamics of the inflation. Contrary to the original FP equation which is for a Hubble horizon size region, we found that the normalizable stationary solution can exist for modified Fokker-Planck equation which is for many Hubble horizon size regions. For a chaotic inflationary model with the potential λψ^<2n>, we get initial distribution of classical universes using this solution, and discussed the physical meaning of it. Especially for n=2, this distribution obeys power-law and classical universes which, created from the Planck energy region, make the fractal structure. In other cases n≠2, creation of large classical universes is strongly suppressed.

• 理論物理学刊行会の論文
• 1989-05-25

著者

• Nambu Yasusada

  Research Institute For Theoretical Physics Hiroshima University

• Nambu Yoichiro

  The Enrico Fermi Institute And Department Of Physics University Of Chicago

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