65 citations · 416 across the 13 of their papers we have counts for
5 papers · 1 filter
A late-accelerating universe with no dark energy - and a finite-temperature big bang
Richard A. Brown, Roy Maartens, Eleftherios Papantonopoulos +1
Brane-world models offer the possibility of explaining the late acceleration of the universe via infra-red modifications to General Relativity, rather than a dark energy field. How…
Cosmological Evolution of a Purely Conical Codimension-2 Brane World
Eleftherios Papantonopoulos, Antonios Papazoglou
We study the cosmological evolution of isotropic matter on an infinitely thin conical codimension-two brane-world. Our analysis is based on the boundary dynamics of a six-dimension…
Induced Curvature in Brane Worlds by Surface Terms in String Effective Actions with Higher-Curvature Corrections
Nick E. Mavromatos, Eleftherios Papantonopoulos
In string-inspired effective actions, representing the low-energy bulk dynamics of brane/string theories, the higher-curvature ghost-free Gauss-Bonnet combination is obtained by lo…
The Need of Dark Energy for Dynamical Compactification of Extra Dimensions on the Brane
Bertha Cuadros-Melgar, Eleftherios Papantonopoulos
We consider a six-dimensional braneworld model and we study the cosmological evolution of a (4+1) brane-universe. Introducing matter on the brane we show that the scale factor of t…
Brane-bulk matter relation for a purely conical codimension-2 brane world
Eleftherios Papantonopoulos, Antonios Papazoglou
We study gravity on an infinitely thin codimension-2 brane world, with purely conical singularities and in the presence of an induced gravity term on the brane. We show that in thi…