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On Perturbation Spectra of N-flation

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arxiv gr-qc/0606034 v3 pith:CWIN42LW submitted 2006-06-08 gr-qc hep-th

Yun-Song Piao This is my paper · ORCID
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keywords n-flationperturbationspectrumadiabaticconsistentcorrespondingfieldfields
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In this note we study the adiabatic perturbation spectrum of N-flation with power law potential. We show that the scalar spectrum of N-flation is generally redder than that of its corresponding single field. The result obtained for that with unequal massive fields is consistent with the recent numerical investigation of Kim and Liddle.

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  1. Tilt and Tensor-to-Scalar Ratio in Multi-Scalar Field Inflation: Non-Sum-Separable Case

    gr-qc 2024-12 reject novelty 3.0 of 10

    A two-field chaotic inflation model with a kinetic-potential coupling can in principle lower ns and r, but the paper's analytic formulas miscompute the correction and its quoted parameter ranges are fitted rather than...

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