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Title: Cosmology with Mimetic Matter

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.
Authors:
 [1] ; ;  [2]
  1. Physics Department, American University of Beirut, Beirut (Lebanon)
  2. Theoretical Physics, Ludwig Maxmillian University, Theresienstr. 37, 80333 Munich (Germany)
Publication Date:
OSTI Identifier:
22373534
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2014; Journal Issue: 06; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; COSMOLOGICAL INFLATION; COSMOLOGY; GRAVITY WAVES; NONLUMINOUS MATTER; PERTURBATION THEORY; SCALAR FIELDS; UNIVERSE