104 citations · 123 across the 3 of their papers we have counts for
4 papers
Defining perturbations on submanifolds
Karim A. Malik, Maria Rodriguez-Martinez, David Langlois
We study the definition of perturbations in the presence of a submanifold, like e.g. a brane. In the standard theory of cosmological perturbations, one compares quantities at the s…
Fluctuating brane in a dilatonic bulk
Philippe Brax, David Langlois, Maria Rodriguez-Martinez
We consider a cosmological brane moving in a static five-dimensional bulk spacetime endowed with a scalar field whose potential is exponential. After studying various cosmological…
Cosmology of a brane radiating gravitons into the extra dimension
David Langlois, Lorenzo Sorbo, Maria Rodriguez-Martinez
We study in a self-consistent way the impact of the emission of bulk gravitons on the (homogeneous) cosmology of a three-brane embedded in a five-dimensional spacetime. In the low…
Brane cosmology with a bulk scalar field
David Langlois, Maria Rodriguez-Martinez
We consider ``cosmologically symmetric'' (i.e. solutions with homogeneity and isotropy along three spatial dimensions) five-dimensional spacetimes with a scalar field and a three-b…