Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2005-12-05
Phys.Rev.Lett. 96 (2006) 161301
Physics
High Energy Physics
High Energy Physics - Theory
5 pages, no figures, same as published one
Scientific paper
10.1103/PhysRevLett.96.161301
We propose a new way of obtaining slow-roll inflation in the context of higher dimensional models motivated by string and M theory. In our model, all extra spatial dimensions are orbifolded. The initial conditions are taken to be a hot dense bulk brane gas which drives an initial phase of isotropic bulk expansion. This phase ends when a weak potential between the orbifold fixed planes begins to dominate. For a wide class of potentials, a period during which the bulk dimensions decrease sufficiently slowly to lead to slow-roll inflation of the three dimensions parallel to the orbifold fixed planes will result. Once the separation between the orbifold fixed planes becomes of the string scale, a repulsive potential due to string effects takes over and leads to a stabilization of the radion modes. The conversion of bulk branes into radiation during the phase of bulk contraction leads to reheating.
Brandenberger Robert
Shuhmaher Natalia
No associations
LandOfFree
Brane gas-driven bulk expansion as a precursor stage to brane inflation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Brane gas-driven bulk expansion as a precursor stage to brane inflation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brane gas-driven bulk expansion as a precursor stage to brane inflation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-697823