2006/07/25 by Mohaddese Heydari-Fard, M. Heydari-Fard, M. Shirazi +4 · 4 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #gr-qc #hep-th
paper · pdf · doi:10.1016/j.physletb.2006.07.020
published as Phys.Lett.B640:1-6,2006 · 10 pages, 2 figures, to appear in Phys. Lett. B
openalex publication_date 2006/07/25 · arxiv created 2007/04/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We construct the Einstein field equations on a 4-dimensional brane embedded in an m-dimensional bulk where the matter fields are confined to the brane by means of a confining potential. As a result, an extra term in the Friedmann equation in a m-dimensional bulk appears that may be interpreted as the X-matter, providing a possible phenomenological explanation for the acceleration of the universe. The study of the relevant observational data suggests good agreement with the predictions of this model.