Document Type
Article
Department/Program
Physics
Journal Title
Journal of Cosmology and Astroparticle Physics
Pub Date
2016
Volume
9
Abstract
Multi-field inflation models include a variety of scenarios for how inflation proceeds and ends. Models with the same potential but different kinetic terms are common in the literature. We compare spiral inflation and Dante's inferno-type models, which differ only in their field-space metric. We justify a single-field effective description in these models and relate the single-field description to a mass-matrix formalism. We note the effects of the nontrivial field-space metric on inflationary observables, and consequently on the viability of these models. We also note a duality between spiral inflation and Dante's inferno models with different potentials.
Recommended Citation
Erlich, Joshua; Wang, Zhen; and Olsen, Jackson, The field-space metric in spiral inflation and related models (2016). Journal of Cosmology and Astroparticle Physics, 9.
https://doi.org/10.1088/1475-7516/2016/09/039
DOI
https://doi.org/10.1088/1475-7516/2016/09/039
