Hierarchical axion inflation.
نویسندگان
چکیده
We propose a new field theory mechanism for generating an effective trans-Planckian decay constant from sub-Planckian ones. Using the minimal two axions and a hierarchy between two axion decay constants is sufficient for realizing inflation through nonperturbative effects only and with minimal tuning. The inflationary motion is kept entirely within a sub-Planckian domain. We outline possible strategies of embedding the model in a string theory setup.
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عنوان ژورنال:
- Physical review letters
دوره 113 26 شماره
صفحات -
تاریخ انتشار 2014