N-flation from multiple DBI type actions

Details N-flation from multiple DBI type actions N-flation from multiple DBI type actions

2008-09-24

arxiv.org/abs/0809.4134v1

Phys.Lett.B680:395-398,2009

Physics

High Energy Physics

High Energy Physics - Theory

4 pages, 1 figure

Scientific paper

10.1016/j.physletb.2009.09.043

In this letter we present a new N-flation model constructed by making use of multiple scalar fields which are being described by their own DBI action. We show that the dependence of the e-folding number and of the curvature perturbation on the number of fields changes compared with the normal N-flation model. Our model is also quite different from the usual DBI N-flation which is still based on one DBI action but involves many moduli components. Some specific examples of our model have been analyzed.

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