Symmetron with a non-minimal kinetic term
General Relativity and Quantum Cosmology
2017-11-29 v2 High Energy Physics - Theory
Abstract
We investigate the compatibility of the Symmetron with dark energy by introducing a non-minimal kinetic term associated with the Symmetron. In this new model, the effect of the friction term appearing in the equation of motion of the Symmetron field becomes more pronounced due to the non-minimal kinetic term appearing in the action and, under specific conditions after symmetry breaking, the universe experiences an accelerating phase which, in spite of the large effective mass of the scalar field, lasts as long as the Hubble time .
Keywords
Cite
@article{arxiv.1704.02572,
title = {Symmetron with a non-minimal kinetic term},
author = {M. Honardoost and D. F. Mota and H. R. Sepangi},
journal= {arXiv preprint arXiv:1704.02572},
year = {2017}
}
Comments
12 pages, 4 figures, to appear in JCAP