Æther compactification and the eta problem in inflationary models

Details Æther compactification and the eta problem in inflationary models Æther compactification and the eta problem in inflationary models

2011-05-24

arxiv.org/abs/1105.4845v3

Physics

High Energy Physics

High Energy Physics - Theory

This paper has been withdrawn by the author due to a crucial field redefinition problem in equation 16 that significantly impa

Scientific paper

A Lorentz violating vector "{\ae}ther" field in five dimensional spacetime can give rise to an inflation model in which the eta problem can be avoided. By identifying the inflaton field with the moduli field describing the radius of the extra dimension, we demonstrate that non-vanishing vacuum expectation value of the {\ae}ther field can suppress contributions from operators that usually destroy the flatness of the inflaton potential. We also show that the latest observational data can put the lower bound on the vacuum expectation value of the {\ae}ther field.

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