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Accelerating universe in brane gravity with a confining potential

M. Heydari-Fard·M. Shirazi·S. Jalalzadeh·H. R. Sepangi
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Abstract

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.

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M. Heydari-Fard, M. Shirazi, S. Jalalzadeh, H. R. Sepangi. 2007-04-17. Accelerating universe in brane gravity with a confining potential. https://doi.org/10.1016/j.physletb.2006.07.020

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