Large field excursions from dimensional (de)construction

Kazuyuki Furuuchi, Suvedha Suresh Naik, Noel Jonathan Jobu

Research output: Contribution to journalArticlepeer-review


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 Nd/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.

Original languageEnglish
Article number054
JournalJournal of Cosmology and Astroparticle Physics
Issue number6
Publication statusPublished - 06-2020

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics


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