Probability distribution for Ω in open-universe inflation

Alexander Vilenkin and Serge Winitzki
Phys. Rev. D 55, 548 – Published 15 January 1997
PDFExport Citation

Abstract

The problem of making predictions in an eternally inflating universe that thermalizes by bubble nucleation is considered. A recently introduced regularization procedure is applied to find the probability distribution for the ensemble of thermalized bubbles. The resulting probabilities are shown to be independent of the choice of the time parametrization. This formalism is applied to models of open “hybrid” inflation with Ω<1. Depending on the parameters of the model, the probability distribution for Ω is found to have a peak either very close to Ω=1, or at an intermediate value of Ω in the range 0.03Ω<1.

  • Received 4 June 1996

DOI:https://doi.org/10.1103/PhysRevD.55.548

©1997 American Physical Society

Authors & Affiliations

Alexander Vilenkin and Serge Winitzki

  • Department of Physics, Tufts University, Medford, Massachusetts 02155

References (Subscription Required)

Click to Expand
Issue

Vol. 55, Iss. 2 — 15 January 1997

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×