Cosmology with Mimetic Matter

By A. Chamseddine, V. Mukhanov, A. Vikman. 2014

258 citations recorded by the source corpus.

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.

Subfields: Astronomy and Astrophysics, Instrumentation, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/3f49eb2528be5f355d61f7b769faa059b0b0933d

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. Tsutomu Kobayashi
2. S. Vagnozzi
3. Ratbay Myrzakulov
4. Lorenzo Sebastiani
5. A. Chamseddine
6. V. Mukhanov
7. J. Rua
8. N. Deruelle

In Instrumentation

1. Tsutomu Kobayashi
2. J. Rua
3. N. Deruelle
4. A. Chamseddine
5. V. Mukhanov
6. Ratbay Myrzakulov
7. S. Vagnozzi

In Nuclear and High Energy Physics

1. Tsutomu Kobayashi
2. S. Vagnozzi
3. Ratbay Myrzakulov
4. Lorenzo Sebastiani
5. A. Chamseddine
6. V. Mukhanov
7. J. Rua
8. N. Deruelle

Citations in the corpus

• Mimetic Gravity: A Review of Recent Developments and Applications to Cosmology and Astrophysics (2016, background): “Given that the pressure of mimetic matter reads p = −V, we immediately see that the EoS for mimetic matter is w = w, demonstrating that mimetic matter, when subdominant, can imitate the EoS of the dominant energy component [73].”
• Nonsingular black hole (2016, methodology): “Consider the theory described by the action [10,11]”
• Resolving cosmological singularities (2016, background): “In a previous paper [7], by allowing a potential term V (φ) , we were able to find bouncing nonsingular solutions for isotropic, homogeneous universe, but even in this case, the most general solutions remain singular.”
• Horndeski theory and beyond: a review (2019, methodology): “mal transformation with D(φ,X) = C(φ,X) 2X +F(φ), (117) where C(φ,X) and F(φ) are arbitrary (see Eq. (109)) [176, 177]. This is essentially the field redefinition used in the context of mimetic gravity [178, 179] (see [180] for a review). The idea behind this is that noninvertible field redefinition can”
• Disformal transformations, veiled General Relativity and Mimetic Gravity (2014, methodology): “This action had already been exploited in [12] yielding a unification of Dark Energy and Dark Matter and was used in [13] to describe inflation, quintessence and bouncing nonsingular universes.”