Adiabatic decaying vacuum model for the universe

Details Adiabatic decaying vacuum model for the universe Adiabatic decaying vacuum model for the universe

2003-06-15

arxiv.org/abs/gr-qc/0306061v2

Gen.Rel.Grav.35:899-906,2003

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, 2 figures

Scientific paper

10.1023/A:1022907506957

We study a model that the entropy per particle in the universe is constant.
The sources for the entropy are the particle creation and a lambda decaying
term. We find exact solutions for the Einstein field equations and show the
compatibilty of the model with respect to the age and the acceleration of the
universe.

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