176 citations · 3.9k across the 153 of their papers we have counts for
5 papers · 1 filter
Spherically Symmetric Braneworld Solutions with R_{4} term in the Bulk
G. Kofinas, E. Papantonopoulos, I. Pappa
An analysis of a spherically symmetric braneworld configuration is performed when the intrinsic curvature scalar is included in the bulk action; the vanishing of the electric part…
Cosmological Evolution of a Brane Universe in a Type 0 String Background
I. Pappa
We study the cosmological evolution of a D3-brane Universe in a type 0 string background. We follow the brane universe along the radial coordinate of the background and we calculat…
Inflation in String Theory and how you can get out of it
E. Papantonopoulos
Inflation is now a basic ingredient of the modern cosmology. After reviewing the basic characteristics of inflation, we briefly discuss inflation in string and brane theories, focu…
Cosmological Evolution in a Type-0 String Theory
G. A. Diamandis, B. C. Georgalas, N. E. Mavromatos +2
We study the cosmological evolution of a type-0 string theory by employing non-criticality, which may be induced by fluctuations of the D3 brane worlds. We check the consistency of…
Inflation Induced by Vacuum Energy and Graceful Exit from it
E. Papantonopoulos, I. Pappa
Motivated by brane cosmology we solve the Einstein equations with a time dependent cosmological constant. Assuming that at an early epoch the vacuum energy scales as , we…