A single field inflation model with large local non-Gaussianity
Europhysics Letters, 2013•iopscience.iop.org
The detection of a large local form of non-Gaussianity is considered to be able to rule out all
single field inflation models. This statement is based on the single field consistency
condition. Despite the awareness of some implicit assumptions in the derivation of this
condition and the demonstration of corresponding examples that illustrate these caveats, to
date there is still no explicit and self-consistent model which can serve as a counterexample
to this statement. We present such a model in this letter.
single field inflation models. This statement is based on the single field consistency
condition. Despite the awareness of some implicit assumptions in the derivation of this
condition and the demonstration of corresponding examples that illustrate these caveats, to
date there is still no explicit and self-consistent model which can serve as a counterexample
to this statement. We present such a model in this letter.
Abstract
The detection of a large local form of non-Gaussianity is considered to be able to rule out all single field inflation models. This statement is based on the single field consistency condition. Despite the awareness of some implicit assumptions in the derivation of this condition and the demonstration of corresponding examples that illustrate these caveats, to date there is still no explicit and self-consistent model which can serve as a counterexample to this statement. We present such a model in this letter.
iopscience.iop.org
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