Non-Gaussianity in KKLMMT model

Abstract

We investigate the non-Gaussianity of the brane inflation which happens in the same throat in the framework of the generalized KKLMMT model. When we take the constraints from non-Gaussianity into account, various consequences are discussed including the bound on the string coupling, such as the string coupling is larger than 0.08 and the effective string scale on the brane is larger than $1.3\times 10^{-4}{M}_p$ in KKLMMT model.

13 pages, 2 figuers, harvmac; references added

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Cited by in corpus (9)

• The inflationary trispectrum
• One-loop corrections to a scalar field during inflation
• Nongaussian and nonscale-invariant perturbations from tachyonic preheating in hybrid inflation
• Non-gaussianity from the inflationary trispectrum
• Nongaussianity from Tachyonic Preheating in Hybrid Inflation
• Large Nongaussianity from Nonlocal Inflation
• Brane Inflation After WMAP Three Year Results
• Analytical Study of Mode Coupling in Hybrid Inflation
• Noncommutative KKLMMT Model