Ghost-Free $F(R)$ Gravity with Lagrange Multiplier Constraint
General Relativity and Quantum Cosmology
2017-11-22 v1 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
We propose two new versions of ghost-free generalized gravity with Lagrange multiplier constraint. The first version of such theory for a particular degenerate choice of the Lagrange multiplier, corresponds to mimetic gravity. The second version of such theory is just the Jordan frame description of mimetic gravity with potential. As we demonstrate, it is possible to realize several cosmological scenarios in such theory. In particulary, de Sitter solutions may also be found.
Keywords
Cite
@article{arxiv.1710.07838,
title = {Ghost-Free $F(R)$ Gravity with Lagrange Multiplier Constraint},
author = {S. Nojiri and S. D. Odintsov and V. K. Oikonomou},
journal= {arXiv preprint arXiv:1710.07838},
year = {2017}
}
Comments
PLB Accepted