Cosmologies from higher-order string corrections

Details Cosmologies from higher-order string corrections Cosmologies from higher-order string corrections

2006-06-06

arxiv.org/abs/hep-th/0606040v2

AnnalenPhys.15:302-315,2006

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 2 figures, References are added, plenary talk at Pomeranian Workshop in Fundamental Cosmology (COSMOFUN 05), Pobiero

Scientific paper

10.1002/andp.200510189

We study cosmologies based on low-energy effective string theory with higher-order string corrections to a tree-level action and with a modulus scalar field (dilaton or compactification modulus). In the presence of such corrections it is possible to construct nonsingular cosmological solutions in the context of Pre-Big-Bang and Ekpyrotic universes. We review the construction of nonsingular bouncing solutions and resulting density perturbations in Pre-Big-Bang and Ekpyrotic models. We also discuss the effect of higher-order string corrections on dark energy universe and show several interesting possibilities of the avoidance of future singularities.

Affiliated with

Also associated with

No associations

Rating

Cosmologies from higher-order string corrections does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cosmologies from higher-order string corrections, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmologies from higher-order string corrections will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-3220