Generation of perturbation after multi-field inflation

Jinn-Ouk Gong

doi:10.1016/j.physletb.2007.10.024

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arXiv · 0706.3599

Generation of perturbation after multi-field inflation

Jinn-Ouk Gong

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Abstract

We explore a new possibility that some inflaton fields in multi-field inflation models satisfy the observed value of the spectral index so that the curvature perturbation generated by them through post-inflationary dynamics may be relevant for the current observations. We illustrate this point using a simple and reasonable multi-field chaotic inflation model motivated from string theory. Possible non-Gaussianity and the tensor-to-scalar ratio are briefly addressed.

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Jinn-Ouk Gong. 2007-10-18. Generation of perturbation after multi-field inflation. https://doi.org/10.1016/j.physletb.2007.10.024

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