Spherically symmetric static spacetimes in vacuum f(T) gravity
General Relativity and Quantum Cosmology
2015-05-30 v3 High Energy Physics - Theory
Abstract
We show that Schwarzschild geometry remains as a vacuum solution for those four-dimensional f(T) gravitational theories behaving as ultraviolet deformations of general relativity. In the gentler context of three-dimensional gravity, we also find that the infrared-deformed f(T) gravities, like the ones used to describe the late cosmic speed up of the Universe, have as the circularly symmetric vacuum solution a Deser-de Sitter or a BTZ-like spacetime with an effective cosmological constant depending on the infrared scale present in the function f(T).
Keywords
Cite
@article{arxiv.1109.4209,
title = {Spherically symmetric static spacetimes in vacuum f(T) gravity},
author = {Rafael Ferraro and Franco Fiorini},
journal= {arXiv preprint arXiv:1109.4209},
year = {2015}
}
Comments
8 pages. Some typos corrected and references updated. One additional typo corrected in Eq. (33). Accepted for publication in Physical Review D. Final version