Large Field Excursions from Dimensional (De)construction. (arXiv:2001.06518v1 [hep-th])

Large Field Excursions from Dimensional (De)construction. (arXiv:2001.06518v1 [hep-th])
<a href="http://arxiv.org/find/hep-th/1/au:+Furuuchi_K/0/1/0/all/0/1">Kazuyuki Furuuchi</a>, <a href="http://arxiv.org/find/hep-th/1/au:+Naik_S/0/1/0/all/0/1">Suvedha Suresh Naik</a>, <a href="http://arxiv.org/find/hep-th/1/au:+Jobu_N/0/1/0/all/0/1">Noel Jonathan Jobu</a>

An inflation model based on dimensional (de)construction of a massive gauge
theory is proposed. The inflaton in this model is the “zero-mode” of a
component of the massive gauge field in the (de)constructed extra dimensions.
The inflaton potential originates from the gauge invariant Stueckelberg
potential. At low energy, the field range of the inflaton is enhanced by a
factor $N^{frac{d}{2}}$ compared to the field range of the original fields in
the model, where $d$ is the number of the (de)constructed extra dimensions and
$N$ is the number of the lattice points in each (de)constructed dimension. This
enhancement of the field range is used to achieve a trans-Planckian inflaton
field excursion. The extension of the mechanism “excursions through KK modes”
to the case of (de)constructed extra dimensions is also studied. The burst of
particle productions by this mechanism may have observable consequences in a
region of the model parameter space.

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