Cosmology with Mimetic Matter
Cosmology and Nongalactic Astrophysics
2014-12-31 v2 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
We consider minimal extensions of the recently proposed Mimetic Dark Matter and show that by introducing a potential for the mimetic non-dynamical scalar field we can mimic nearly any gravitational properties of the normal matter. In particular, the mimetic matter can provide us with inflaton, quintessence and even can lead to a bouncing nonsingular universe. We also investigate the behaviour of cosmological perturbations due to a mimetic matter. We demonstrate that simple mimetic inflation can produce red-tilted scalar perturbations which are largely enhanced over gravity waves.
Cite
@article{arxiv.1403.3961,
title = {Cosmology with Mimetic Matter},
author = {Ali H. Chamseddine and Viatcheslav Mukhanov and Alexander Vikman},
journal= {arXiv preprint arXiv:1403.3961},
year = {2014}
}
Comments
19 pages