Quantum Birth of a Hot Universe

Details Quantum Birth of a Hot Universe Quantum Birth of a Hot Universe

2000-09-08

arxiv.org/abs/gr-qc/0009025v1

Phys.Lett. B545 (2002) 214-220

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, no figures, LaTex, submitted to Phys. Rev. D

Scientific paper

10.1016/S0370-2693(02)02620-5

We consider quantum birth of a hot Universe in the framework of quantum qeometrodynamics in the minisuperspace model. The energy spectrum of the Universe in the pre-de-Sitter domain naturally explains the cosmic microwave background (CMB) anisotropy. The false vacuum where the Universe tunnels from the pre-de-Sitter domain is assumed to be of a Grand Unification Theory (GUT) scale. The probability of the birth of a hot Universe from a quantum level proves to be about $10^{-10^{14}}$. In the presence of matter with a negative pressure (quintessence) it is possible for open and flat universes to be born as well as closed ones.

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