It is already understood that the increasing observational evidence for an open universe can be reconciled with inflation if our horizon is contained inside one single huge bubble nucleated during the inflationary phase transition. In this frame of ideas, we show here that the probability of living in a bubble with the right Ω0(≈0.2) can be comparable to unity, rather than infinitesimally small. For this purpose we modify both quantitatively and qualitatively an intuitive toy model of ours. Therefore, inferring from the observations that Ω0<1 not only does not conflict with the inflationary paradigm, but rather supports therein the occurrence of a primordial phase transition.
Reconciling inflation with openness / Amendola, L.; Baccigalupi, C.; Occhionero, F.. - In: PHYSICAL REVIEW D. - ISSN 0556-2821. - 54:8(1996), pp. 1-4. [10.1103/PhysRevD.54.4760]
Reconciling inflation with openness
Baccigalupi, C.;
1996-01-01
Abstract
It is already understood that the increasing observational evidence for an open universe can be reconciled with inflation if our horizon is contained inside one single huge bubble nucleated during the inflationary phase transition. In this frame of ideas, we show here that the probability of living in a bubble with the right Ω0(≈0.2) can be comparable to unity, rather than infinitesimally small. For this purpose we modify both quantitatively and qualitatively an intuitive toy model of ours. Therefore, inferring from the observations that Ω0<1 not only does not conflict with the inflationary paradigm, but rather supports therein the occurrence of a primordial phase transition.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
