Slow Roll in Brane Inflation

Details Slow Roll in Brane Inflation Slow Roll in Brane Inflation

2004-12-08

arxiv.org/abs/hep-th/0412077v2

JCAP 0504 (2005) 011

Physics

High Energy Physics

High Energy Physics - Theory

20 pages, 1 figure references added

Scientific paper

10.1088/1475-7516/2005/04/011

We address the issue of slow-roll in string theory models of inflation. Using a K\"{a}hler transformation and results from the D3-D7 model, we show why we expect flat directions to be present and slow-roll to be possible in general. We connect with earlier discussions of shift symmetry for $T^6/Z_2$ and $K3\times T^2/Z_2$ compactifications. We also collect various contributions to the inflationary potential and discuss their importance for slow-roll. We include a few simple checks of the form of the Kahler potential on $T^6/Z_2$ using T-duality.

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