Suppression of Entropy Perturbations in Multi--Field Inflation on the Brane

Details Suppression of Entropy Perturbations in Multi--Field Inflation on the Brane Suppression of Entropy Perturbations in Multi--Field Inflation on the Brane

2002-08-22

arxiv.org/abs/astro-ph/0208411v1

Phys.Rev. D66 (2002) 121302

Astronomy and Astrophysics

Astrophysics

4 pages, 1 figure

Scientific paper

10.1103/PhysRevD.66.121302

At energies higher than the brane tension, the dynamics of a scalar field rolling down a potential are modified relative to the predictions of General Relativity. The modifications imply, among other things, that steeper potentials can be used to drive an epoch of slow--roll inflation. We investigate the evolution of entropy and adiabatic modes during inflation driven by two scalar fields confined on the brane. We show that the amount of entropy perturbations produced during inflation is suppressed compared to the predictions made by General Relativity. As a consequence, the initial conditions do not matter in multiple field inflation in brane worlds if inflation is driven at energies much higher than the brane tension.

Affiliated with

Also associated with

No associations

Rating

Suppression of Entropy Perturbations in Multi--Field Inflation on the Brane 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 Suppression of Entropy Perturbations in Multi--Field Inflation on the Brane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Suppression of Entropy Perturbations in Multi--Field Inflation on the Brane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-401878