Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2011-09-30
Physics
High Energy Physics
High Energy Physics - Theory
24 pages, 5 figures, latex; reference added; a few clarifications added, typos corrected
Scientific paper
We describe type $II_A$ cosmological brane inflation scenarios based on the holographic MQCD model of Aharony et al \cite{Aharony:2010mi}. The scenarios can be related via T-duality to the type $II_B$ KKLMMT model \cite{Kachru:2003sx}. They describe a probe brane configuration of $p$ D4 branes stretching between an $NS5$ and $NS5'$ branes in the holographic background of large $N$ D4 branes. The resulting cosmological models have a Wick-rotated D4-brane metric, with transverse dimensions compactified, and a spiralling brane with flux $p$. In one model, the background has a small nonextremality, and the inflaton is provided by the position of a "sliding" D4-brane, and in the other, the background is supersymmetric, but with a sliding anti-D4-brane. We obtain good and generic inflationary models, though several unknowns remain, in particular about subleading corrections. The usual caveat of volume stabilization generically spoiling slow-roll still applies.
Nastase Horatiu
Sonnenschein Jacob
No associations
LandOfFree
Towards brane-antibrane inflation in type $II_A$: The holographic MQCD model 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 Towards brane-antibrane inflation in type $II_A$: The holographic MQCD model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Towards brane-antibrane inflation in type $II_A$: The holographic MQCD model will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-668579