93 citations · 93 across the 1 of their papers we have counts for
3 papers
astro-ph2001★ 93 cited
Cosmological perturbations in the bulk and on the brane
Helen A. Bridgman, Karim A. Malik, David Wands
We study cosmological perturbations in a brane-world scenario where the matter fields live on a four-dimensional brane and gravity propagates in the five-dimensional bulk. We prese…
hep-th2000
Cosmic vorticity on the brane
Helen A. Bridgman, Karim A. Malik, David Wands
We study vector perturbations about four-dimensional brane-world cosmologies embedded in a five-dimensional vacuum bulk. Even in the absence of matter perturbations, vector perturb…
hep-th2000
Cosmological perturbation spectra from SL(4,R)-invariant effective actions
Helen A. Bridgman, David Wands
We investigate four-dimensional cosmological vacuum solutions derived from an effective action invariant under global SL(n,R) transformations. We find the general solutions for lin…