Perspective on completing natural inflation
arXiv:1410.1762 · doi:10.3389/fphy.2014.00083
Abstract
We present a perspective on the inflation paths in 2-, 3-,,, N-flation models based on the ultraviolet completion in heterotic string theory, where a number of grand unification scale axions are used. The number of non-Abelian gauge groups for a natural inflation is restricted in string compactification, and we argue that the most plausible completion of natural inflation from a theory perspective is the 2-flation.
5 pages, 1 eps figure
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