Ghost-free higher derivative unimodular gravity
High Energy Physics - Theory
2017-12-27 v3
Abstract
The unimodular version of the ghost-free higher derivative gravity is obtained. It is the unimodular reduction of some particular lagrangians quadratic in curvature.
Keywords
Cite
@article{arxiv.1708.03133,
title = {Ghost-free higher derivative unimodular gravity},
author = {Enrique Alvarez and Sergio Gonzalez-Martin},
journal= {arXiv preprint arXiv:1708.03133},
year = {2017}
}
Comments
11 pages. LaTeX, some mistakes corrected; reference added. Verdio to be published in PRD