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Slow roll in brane inflation

Published 18 April 2005 IOP Publishing Ltd
, , Citation Sarah Shandera JCAP04(2005)011 DOI 10.1088/1475-7516/2005/04/011

1475-7516/2005/04/011

Abstract

We address the issue of slow roll in string theory models of inflation. Using a Kähler 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 T6/Z2 and K3 × T2/Z2 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 Kähler potential on T6/Z2 using T-duality.

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10.1088/1475-7516/2005/04/011