Tachyonic fields in cosmology
Cosmology and Nongalactic Astrophysics
2014-01-14 v3
Abstract
The possibility of explanation of accelerated expansion of the Universe by tachyonic scalar fields which homogeneously fill the world is discussed. The dependences of potential and kinetic term on scale factor are deduced for the case of quintessential and phantom dark energy with generalized linear barotropic equation of state. The possibility to distinguish the tachyonic scalar field as dark energy from other scalar field models, especially from classical scalar field, is analyzed.
Keywords
Cite
@article{arxiv.1311.0227,
title = {Tachyonic fields in cosmology},
author = {Bohdan Novosyadlyj},
journal= {arXiv preprint arXiv:1311.0227},
year = {2014}
}
Comments
12 pages (v1,v2 in Ukrainian, v3 in English), 4 figures; accepted for publication in Collected Physical Papers of Shevchenko Scientific Society