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arXiv · 0712.3328

"Phantom" Inflation in Warped Compactification

Yun-Song Piao
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Abstract

In this paper, in a class of warped compactifications with the brane/flux annihilation, we find that the inflation may be driven by a flat direction identified as that along the number p of anti D3-branes located at the tip of the Klebanov-Strassler throat. The spectrum of adiabatic perturbation generated during inflation is nearly scale invariant, which may be obtained by using the results shown in the phantom inflation, since in a four-dimension effective description the evolution of energy density along the $p$ direction is slowly increasing.

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Yun-Song Piao. 2008-09-04. "Phantom" Inflation in Warped Compactification. https://doi.org/10.1103/physrevd.78.023518

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