Dark Energy and the False Vacuum

Details Dark Energy and the False Vacuum Dark Energy and the False Vacuum

2006-12-10

arxiv.org/abs/astro-ph/0612245v1

J.Phys.A40:6871,2007

Astronomy and Astrophysics

Astrophysics

6 pages. To appear in the Proceedings of the 2nd International Conference on Quantum Theories and Renormalization Group in Gra

Scientific paper

10.1088/1751-8113/40/25/S32

In this talk, I will present highlights of a recent model of dark energy and dark matter in which the present universe is ``trapped'' in a {\em false vacuum} described by the potential of an axion-like scalar field (the acceleron) which is related to a new strong interaction gauge sector, $SU(2)_Z$, characterized by a scale $\Lambda_Z \sim 3 \times 10^{-3} eV$. This false vacuum model mimicks the $\Lambda CDM$ scenario. In addition, there are several additional implications such as a new mechanism for leptogenesis coming from the decay of a ``messenger'' scalar field, as well as a new model of ``low-scale'' inflation whose inflaton is the ``radial'' partner of the acceleron.

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