Astronomy and Astrophysics – Astrophysics
Scientific paper
1995-08-09
Phys.Rev. D53 (1996) 4280-4286
Astronomy and Astrophysics
Astrophysics
20 pages, 2 figures (available from the authors), uses LaTeX
Scientific paper
10.1103/PhysRevD.53.4280
We consider a nonsingular deflationary cosmological model with decaying vacuum energy density in universes of arbitrary spatial curvature. Irrespective of the value of $k$, the models are characterized by an arbitrary time scale $H_I^{-1}$ which determines the initial temperature of the universe and the largest value of the vacuum energy density, the slow decay of which generates all the presently observed matter-energy of the universe. If $H_I^{-1}$ is of the order of the Planck time, the models begin with the Planck temperature and the present day value of the cosmological constant satisfies $\Lambda_I/\Lambda_0 \simeq 10^{118}$ as theoretically suggested. It is also shown that all models allow a density parameter $\Omega_0 <2/3$ and that the age of the universe is large enough to agree with observations even with the high value of $H_0$ suggested by recent measurements.
Lima Jose A. S.
Trodden Mark
No associations
LandOfFree
Decaying Vacuum Energy and Deflationary Cosmology in Open and Closed Universes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Decaying Vacuum Energy and Deflationary Cosmology in Open and Closed Universes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decaying Vacuum Energy and Deflationary Cosmology in Open and Closed Universes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-88781