2008/12/10 by Rafael Ferraro, Franco Fiorini · 2 citations
Physics and Astronomy · #gr-qc #hep-th
paper · pdf · doi:10.1103/physrevd.78.124019
published as Phys.Rev.D78:124019,2008 · 8 pages, 1 figure. Accepted for publication in Phys. Rev. D
arxiv created 2008/12/10 · arxiv updated 2009/12/01
Using the Teleparallel Equivalent of General Relativity formulated in Weitzenböck spacetime, we thoroughly explore a kind of Born-Infeld regular gravity leading to second order field equations for the vielbein components. We explicitly solve the equations of motion for two examples: the extended BTZ black hole, which results to exist even if the cosmological constant is positive, and a cosmological model with matter, where the scale factor results to be well behaved, giving so a singularity-free solution.