Anisotropic Inflation with the non-Vacuum Initial State

Abstract

In this work we study models of anisotropic inflation with the generalized non-vacuum initial states for the inflaton field and the gauge field. The effects of non Bunch-Davies initial condition on the anisotropic power spectrum and bispectrum are calculated. We show that the non Bunch-Davies initial state can help to reduce the fine-tuning on the anisotropic power spectrum while reducing the level of anisotropic bispectrum.

13 pages, 3 figures

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• CMB statistical anisotropies of classical and quantum origins
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