Dark energy, Dirac's scalar field and the cosmological constant problem

Details Dark energy, Dirac's scalar field and the cosmological constant problem Dark energy, Dirac's scalar field and the cosmological constant problem

2011-12-19

arxiv.org/abs/1112.4449v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, no figures

Scientific paper

The solutions of the field equations of the conformal theory of gravitation with Dirac scalar field in Weyl-Cartan spacetime in very early universe are obtained. In this theory dark energy (describing by an effective cosmological constant) is a function of the Dirac scalar field $\beta$. These solutions describe the exponential decreasing of $\beta$ at the first exponential stage of inflation. One of these solutions has a limit to a constant value of the dark energy at large time that can give a way to solving the fundamental cosmological constant problem as a consequence of the fields dynamics in the early universe.

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