Cosmological tensor perturbations in the RandallSundrum model: Evolution in the nearbrane limit
Abstract
We discuss the evolution of cosmological tensor perturbations in the RandallSundrum model with one brane. In Gaussian normal coordinates the wave equation is nonseparable, so we use the nearbrane limit to perform the separation and study the evolution of perturbations. Massive excitations, which may also mix, decay outside the horizon, which could lead to some novel cosmological signatures.
 Publication:

Physical Review D
 Pub Date:
 March 2004
 DOI:
 10.1103/PhysRevD.69.064040
 arXiv:
 arXiv:hepth/0308134
 Bibcode:
 2004PhRvD..69f4040B
 Keywords:

 04.50.+h;
 98.80.k;
 Gravity in more than four dimensions KaluzaKlein theory unified field theories;
 alternative theories of gravity;
 Cosmology;
 High Energy Physics  Theory
 EPrint:
 18 pages, 1 figure