Richard Easther et al JCAP10(2003)014 doi:10.1088/1475-7516/2003/10/014
Richard Easther1, David Langlois2, Roy Maartens3 and David Wands3,4
Show affiliationsWe investigate the evolution of gravitational wave perturbations about a brane cosmology embedded in a five-dimensional anti-de Sitter bulk. During slow-roll inflation in a Randall–Sundrum brane-world, the zero mode of the five-dimensional graviton is generated, while the massive modes remain in their vacuum state. When the zero mode re-enters the Hubble radius during radiation domination, massive modes are generated. We show that modes decouple in the low-energy/near-brane limit and develop perturbative techniques to calculate the mode-mixing at finite energy.
Issue 10 (October 2003)
Received 18 August 2003, accepted for publication 27 August 2003
Published 30 October 2003
Richard Easther et al JCAP10(2003)014
R G Roberts and M R Whalley 1991 J. Phys. G: Nucl. Part. Phys. 17 D1