New Modified Mimetic Gravity
Abstract
A modified Mimetic gravity (MMG) is proposed as a generalization of general relativity. The model contain a physical metric which is function of an auxiliary (unphysical) metric and a Lyra's metric. We construct different kinds of conformally invariant models in different levels of the expansion parameter . This model phenomenologically has been extended to higher order forms. Cosmology of a certain class of such models has been investigated in details. A cosmological solution has been proposed in inhomogeneous form of scalar field. For homogenous case, energy conditions are widely investigated. We have shown that the system evaluated at intervals shorter than a certain time meets all the energy conditions.
Keywords
Cite
@article{arxiv.1407.5662,
title = {New Modified Mimetic Gravity},
author = {Davood Momeni and Aziza Altaibayeva and Ratbay Myrzakulov},
journal= {arXiv preprint arXiv:1407.5662},
year = {2015}
}
Comments
Revised version, Accepted in "International Journal of Geometric Methods in Modern Physics"