EAS Publications Series
Volume 30, 2008Spanish Relativity Meeting - Encuentros Relativistas Españoles , ERE2007: Relativistic Astrophysics and Cosmology
|Page(s)||319 - 322|
|Published online||30 September 2008|
A. Oscoz, E. Mediavilla and M. Serra-Ricart (eds)
EAS Publications Series, 30 (2008) 319-322
The Cosmological Constant Problem in Brane-world Cosmology
Instituto de Física, Universidade de Brasília,
70919-970, Brasília, D.F.
Corresponding author: firstname.lastname@example.org
It is shown that the cosmological constant problem in brane-world is different from the same problem in general relativity, essentially because the gauge fields fields contributing to the vacuum energy are confined to the brane-world, but the cosmological term propagates in the bulk. The brane-wrld equations of motion include a second order, conserved symmetric tensor field in four dimensions defined by the extrinsic curvature, which adjusts the vacuum energy. In the application to the FRW brane-world universe embedded in a five-dimensional deSitter bulk, that tensor modifies Friedman's equation with a remarkable agreement with the current gold set of cosmological data.
© EAS, EDP Sciences, 2008
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.