Cosmology with Mimetic Matter
pith:EHWW65A5 Add to your LaTeX paper
What is a Pith Number?\usepackage{pith}
\pithnumber{EHWW65A5}
Prints a linked pith:EHWW65A5 badge after your title and writes the identifier into PDF metadata. Compiles on arXiv with no extra files. Learn more
read the original 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.
This paper has not been read by Pith yet.
Forward citations
Cited by 3 Pith papers
-
Gravitational wave constraints on the Paneitz operator
The Paneitz operator in 4D belongs to extended mimetic gravity and is constrained by gravitational wave propagation speed.
-
A Nonlocal Realization of MOND that Interpolates from Cosmology to Gravitationally Bound Systems
A nonlocal gravity model interpolates between MOND in bound systems and dark matter-like effects in cosmology.
-
Imperfect dark matter with higher derivatives
Higher-derivative extension of dark matter yields an imperfect fluid that matches pressureless dust on homogeneous backgrounds but generates acceleration and vorticity to avoid caustic singularities in inhomogeneous c...
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.