Unification of cosmological scalar fields

Date
Authors
Pérez-Lorenzana, Abdel
Montesinos, Merced
Matos, Tonatiuh
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
We present a model where early inflation and late accelerating expansion of the Universe are driven by the real and imaginary parts of a single complex scalar field, which we identified as inflaton and phantom field, respectively. This inflaton-phantom unification is protected by an internal SO(1,1) symmetry, with the two cosmological scalars appearing as the degrees of freedom of a sole fundamental representation. The unification symmetry allows to build successful potentials. We observe that our theory provides a matter-phantom duality, which transforms scalar matter cosmological solutions into phantom solutions and vice versa. We also suggest that a complete unification of all scalar fields of cosmological interest is yet possible under a similar footing.
Comment: Title slightly changed to match published version. Typos corrected and references added. Five pages, no figures
Keywords
Astrophysics, General Relativity and Quantum Cosmology, High Energy Physics - Phenomenology, High Energy Physics - Theory
Citation
Collections