395 citations · 2.4k across the 17 of their papers we have counts for
7 papers · 1 filter
Non-commutative inflation and the CMB
Shinji Tsujikawa, Roy Maartens, Robert Brandenberger
Non-commutative inflation is a modification of standard general relativity inflation which takes into account some effects of the space-time uncertainty principle motivated by idea…
Dynamics of radiating braneworlds
Emily Leeper, Roy Maartens, Carlos Sopuerta
If the observable universe is a braneworld of Randall-Sundrum type, then particle interactions at high energies will produce 5-dimensional gravitons that escape into the bulk. As a…
Braneworld cosmological models with anisotropy
Antonio Campos, Roy Maartens, David Matravers +1
For a cosmological Randall-Sundrum braneworld with anisotropy, i.e., of Bianchi type, the modified Einstein equations on the brane include components of the five-dimensional Weyl t…
Evolution of gravitational waves in Randall-Sundrum cosmology
Richard Easther, David Langlois, Roy Maartens +1
We 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…
Brane cosmology with curvature corrections
G. Kofinas, R. Maartens, E. Papantonopoulos
We study the cosmology of the Randall-Sundrum brane-world where the Einstein-Hilbert action is modified by curvature correction terms: a four-dimensional scalar curvature from indu…
Brane-world cosmological perturbations: a covariant approach
Roy Maartens
The standard cosmological model, based on general relativity with an inflationary era, is very effective in accounting for a broad range of observed features of the universe. Howev…