Comments On Torsion and MacDowell-Mansouri gravity
General Relativity and Quantum Cosmology
2021-05-18 v2
Abstract
Starting with the MacDowell-Mansouri formulation of gravity with a gauge group, we introduce new parameters into the action to include the non-dynamical Holst term, and the topological Nieh-Yan and Pontryagin classes. Then, we consider the new parameters as fields and analyze the solutions coming from their equations of motion. The new fields introduce torsional contributions to the theory that modify Einstein's equations.
Keywords
Cite
@article{arxiv.1401.1838,
title = {Comments On Torsion and MacDowell-Mansouri gravity},
author = {J. C. López-Domínguez and J. E. Rosales-Quintero and M. Sabido},
journal= {arXiv preprint arXiv:1401.1838},
year = {2021}
}
Comments
14 pages, no figures, matches published version