Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2004-07-19
Phys.Rev. D70 (2004) 123519
Physics
High Energy Physics
High Energy Physics - Theory
8 pages, 2 figures
Scientific paper
10.1103/PhysRevD.70.123519
We calculate the amplitude of gravitational waves produced by inflation on a de Sitter brane embedded in five-dimensional anti-de Sitter bulk spacetime, extending previous calculations in Randall-Sundrum type cosmology to include the effect of induced gravity corrections on the brane. These corrections arise via a term in the brane action that is proportional to the brane Ricci scalar. We find that, as in the Randall-Sundrum case, there is a mass gap between the discrete zero-mode and a continuum of massive bulk modes, which are too heavy to be excited during inflation. We give the normalization of the zero-mode as a function of the Hubble rate on the brane and are thus able to calculate the high energy correction to the spectrum of gravitational wave (tensor) modes excited on large scales during inflation from initial vacuum fluctuations on small scales. We also calculate the amplitude of density (scalar) perturbations expected due to inflaton fluctuations on the brane, and show that the usual four-dimensional consistency relation for the tensor/scalar ratio remains valid for brane inflation with induced gravity corrections.
Bouhmadi-Lopez Mariam
Maartens Roy
Wands David
No associations
LandOfFree
Gravitational waves from brane-world inflation with induced gravity 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 Gravitational waves from brane-world inflation with induced gravity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravitational waves from brane-world inflation with induced gravity will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-535695