Cosmological tensor perturbations in the Randall-Sundrum model: Evolution in the near-brane limit
Abstract
We discuss the evolution of cosmological tensor perturbations in the Randall-Sundrum model with one brane. In Gaussian normal coordinates the wave equation is nonseparable, so we use the near-brane 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:hep-th/0308134
- Bibcode:
- 2004PhRvD..69f4040B
- Keywords:
-
- 04.50.+h;
- 98.80.-k;
- Gravity in more than four dimensions Kaluza-Klein theory unified field theories;
- alternative theories of gravity;
- Cosmology;
- High Energy Physics - Theory
- E-Print:
- 18 pages, 1 figure