Eternal inflation and the present universe

Details Eternal inflation and the present universe Eternal inflation and the present universe

1999-11-22

arxiv.org/abs/gr-qc/9911087v2

Nucl.Phys.Proc.Suppl. 88 (2000) 67-74

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Talk given at QG99, Sardinia, Sept. 1999

Scientific paper

10.1016/S0920-5632(00)00755-6

Eternally inflating universes can contain thermalized regions with different values of the cosmological parameters. In particular, the spectra of density fluctuations should be different, because of the different realizations of quantum fluctuations of the inflaton field. I discuss a general method for calculating probability distributions for such variable parameters and analyse the density fluctuation spectrum as a specific application.

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