Work

Cosmology with Mimetic Matter

Year: 2014

Type: article

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.

Source: Journal of Cosmology and Astroparticle Physics

DOI: 10.1088/1475-7516/2014/06/017

Authors: Ali H. Chamseddine, Viatcheslav Mukhanov, Alexander Vikman

Institutions: Institut des Hautes Études Scientifiques, American University of Beirut, Max Planck Institute for Physics, Ludwig-Maximilians-Universität München

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funder: National Science Foundation

Award: Space-Time from the Spectral Point of View: Towards Quantum Gravity